WO2002040215A1 - Procede d'assemblage a l'aide d'informations d'affichage et ensemble fabrique selon ledit procede d'assemblage - Google Patents
Procede d'assemblage a l'aide d'informations d'affichage et ensemble fabrique selon ledit procede d'assemblage Download PDFInfo
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- WO2002040215A1 WO2002040215A1 PCT/JP2001/010003 JP0110003W WO0240215A1 WO 2002040215 A1 WO2002040215 A1 WO 2002040215A1 JP 0110003 W JP0110003 W JP 0110003W WO 0240215 A1 WO0240215 A1 WO 0240215A1
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- WIPO (PCT)
- Prior art keywords
- cell structure
- assembly
- information
- metal container
- cell
- Prior art date
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
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- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 claims description 2
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/496—Multiperforated metal article making
- Y10T29/49604—Filter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49764—Method of mechanical manufacture with testing or indicating
- Y10T29/49771—Quantitative measuring or gauging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49764—Method of mechanical manufacture with testing or indicating
- Y10T29/49771—Quantitative measuring or gauging
- Y10T29/49776—Pressure, force, or weight determining
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49909—Securing cup or tube between axially extending concentric annuli
- Y10T29/49913—Securing cup or tube between axially extending concentric annuli by constricting outer annulus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49925—Inward deformation of aperture or hollow body wall
- Y10T29/49927—Hollow body is axially joined cup or tube
Definitions
- the present invention relates to a method for assembling an assembly in which a cell structure is housed and held in a metal container via a compressible material. More specifically, unique information is displayed on a surface of a member constituting the assembly, and The present invention relates to a method of assembling an assembly using members that satisfy appropriate combination conditions using information.
- INDUSTRIAL APPLICABILITY The present invention is applied to a catalyst carrier or filter for purifying exhaust gas of an internal combustion engine, a deodorizing catalyst, or a chemical reaction device utilizing a catalytic action, for example, a catalyst carrier or a filter used in a reformer for a fuel cell or the like. can do. Background art
- Cell structures and tubular metal containers can be used as catalytic converters for purifying exhaust gas from internal combustion engines and for chemical reaction devices that utilize catalytic action, or as assemblies used for filters, heat exchangers, and other applications.
- a compressible material having a cushioning property is disposed between the cell structure and the cell structure, and a predetermined compressive surface pressure is applied to the cell structure via the compressible material, whereby the cell structure is gripped and stored in a metal container. (Canning) is known.
- precious metals such as platinum, palladium, and rhodium are dispersed and supported as catalyst components on a ceramic honeycomb structure, which is a type of cell structure. This is stored in a metal container (can) via a ceramic mat or the like, and is mounted on the exhaust system.
- the cell structure is preferably held in a metal container by applying a compressive surface pressure to its outer peripheral surface, and therefore preferably has high strength.
- the wall thickness of the cell partition is progressing to improve the purification performance, and the strength level is decreasing accordingly.
- the strength of the cell structure can be measured by the “isostatic fracture strength test”. This is a test in which a cell structure is placed in a rubber cylindrical container, covered with an aluminum plate, and subjected to isotropic pressure compression in water. The outer surface of the cell structure is gripped by a converter can Simulates the compression load weight in the case.
- the isostatic strength is indicated by a pressurized pressure value at the time when the carrier is broken, and is specified in an automotive standard JAS ⁇ standard M505-87 issued by the Japan Society of Automotive Engineers of Japan.
- a ceramic honeycomb structure used as a catalyst carrier for a converter for purifying exhaust gas from automobiles has a cell partition wall thickness of less than 0.1 lmm and an aperture ratio exceeding 85%.
- the compression pressure acting on the outer peripheral portion of the cell structure is uniform because the gap between the cell structure and the metal container accommodating the cell structure is not constant due to the external accuracy of the cell structure.
- the cell structure may be damaged by a large gripping surface pressure acting partially.
- the surface pressure is lowered too much, the cell structure cannot be held in the metal container due to high temperature exhaust gas flow and vibration in the actual use environment, so the required minimum surface pressure exists .
- the partition wall thickness of the cell structure decreases, the isostatic strength level of the cell structure decreases.
- the surface pressure also needs to be as low as possible while maintaining the minimum surface pressure required for gripping the cell structure.As the compression surface pressure level decreases, the surface pressure variation decreases, that is, a more uniform surface It is necessary to make pressure distribution.
- the honeycomb structure made of ceramic used as a catalyst carrier as described above is dried as it is after extrusion molding, processed to a predetermined length, and stored in a metal container in a fired state. Therefore, the outer diameter of the honeycomb-shaped structure is in a state where dimensional fluctuations and deformations are added in all steps of forming, drying, and firing, and the outer diameter of the honeycomb-shaped structure is much larger than that of metal processing members. It has variation. Therefore, when a ceramic honeycomb-shaped structure is housed in a metal container, it is an issue how to suppress the influence of variations in the outer diameter of the honeycomb-shaped structure.
- the present invention has been made in view of the above-mentioned conventional problems, and is intended to be used when assembling an assembly in which a cell structure is housed and held in a metal container via a compressible material, the cell structure constituting the assembly
- An object of the present invention is to provide an assembling method in which even if there are variations in external dimensions of members such as a body, the influence is suppressed, and an appropriate gripping state without breakage of a cell structure can be easily obtained. . Disclosure of the invention
- a compressible material having a cushioning property is arranged in a compressed state between the outer peripheral portion of the cell structure and the cylindrical metal container, and a compressive surface is provided on the cell structure via the compressible material.
- An assembly method characterized by selecting a structure, a metal container, and a compressible material ( (1st invention) and are provided.
- the assembly used in a catalytic converter or the like in which the cell structure is housed and held in a metal container via a compressible material, is disposed between the outer peripheral portion of the cell structure and the cylindrical metal container.
- the cell structure is assembled by holding a cell structure in a metal container by arranging a compressible material having a cushioning property in a compressed state and applying a compressive surface pressure to the cell structure via the compressible material.
- the method for assembling such an assembly information on the thickness and z or bulk density of the compressible material is displayed on the surface of the material before entering the assembling step.
- the information is read, and based on the information, the cell structure, metal container, and compressible material that meet the appropriate holding conditions are selected.
- Factors that affect the surface pressure of the cell structure include, in addition to the dimensions of the cell structure and the metal container, the thickness and / or bulk density of the compressible material disposed between the two. In this way, by selecting the cell structure, metal container, and compressible material that have the appropriate combination of dimensions from the information on those displayed on the surface of the material, the cell structure housed and held in the metal container can be selected. Surface pressure is applied in an appropriate range.
- characters and barcodes can be used as the information display format.
- the information can be displayed by ink application, laser, stamping with a stamp, etc. Further, information may be printed on a label, and the label may be attached to the surface of the material.
- information is represented by ink, it is preferable to use an ink jet method or a thermal transfer method.
- the compressible materials having cushioning properties are mainly metal wire mesh, heat-expandable mats composed of ceramic fibers and vermiculite, and ceramic fibers.
- One material selected from the group consisting of non-heat-expandable mats containing no vermiculite as a component or two or more composite materials is preferred.
- the cell structure when it has a thin-walled structure, it mainly contains ceramic fibers such as alumina, high alumina, mullite, silicon carbide, silicon nitride, zirconia, and titania, and is thermally expandable like a vermiculite.
- ceramic fibers such as alumina, high alumina, mullite, silicon carbide, silicon nitride, zirconia, and titania
- the compressive force acting on the outer peripheral portion of the cell structure does not fluctuate greatly within a practical temperature range, and the compressive force is substantially uniform over the entire outer peripheral portion of the cell structure. It is preferred because it acts on
- Methods for storing the cell structure in the metal container and applying compressive surface pressure to the cell structure via a compressible material include a clamshell method, a pushing method, a curling method, a swaging method, and rotary forging. Preferably, any one of the methods is used.
- the cell structure is a honeycomb structure having a plurality of cell passages formed by a plurality of partition walls.
- the cell partition wall has a thickness of 0.11 mm or less and an aperture ratio of 85% or more. Some are preferred. Further, it is preferable that the honeycomb structure has an outer wall forming an outer diameter contour around the structure, and the outer wall thickness is at least 0.05 mm.
- the cell structure used in the present invention may be a form-like structure in addition to the above-mentioned honeycomb-like structure.
- the cell structure is a ceramic material selected from the group consisting of cordierite, alumina, mullite, lithium aluminum silicate, aluminum titanate, titania, zirconia, silicon nitride, aluminum nitride and silicon carbide, or
- it is composed of a composite of two or more ceramic materials.
- those composed of one kind of adsorbing material selected from the group consisting of activated carbon, silica gel and zeolite can also be suitably used.
- the honeycomb-shaped structure manufactured by extrusion molding has a triangular shape, a square shape, a hexagonal shape, a round shape, and the like. It is widely used, but recently, honeycomb-like structures with hexagonal cells are also being used.
- honeycomb-like structures with hexagonal cells are also being used.
- it is necessary to support the catalyst component in the cell structure Typically, after supporting the catalyst component in the cell structure, the cell structure is stored in a metal container. After holding the cell structure in a metal container, the catalyst component may be carried on the cell structure.
- the second invention is an assembly assembled by the method according to the first invention.
- the cell structure is held in the metal container at an appropriate compression surface pressure, it is used for purifying automobile exhaust gas. It can be suitably used for applications such as catalytic converters.
- the assembly may have a structure in which a plurality of cell structures are arranged in series in a single metal container along a cell passage direction via a compressible material having cushioning properties.
- a plurality of assemblies each holding and holding one cell structure in a single metal container via a compressible material having a cushioning property are provided in one metal outer cylinder along the cell passage direction of the cell structure. May be used in series.
- the size of the metal containers should be as close as possible. It is desirable to connect them.
- a method using an ink jet printing device and a method using a laser device are preferable in terms of high printing speed and non-contact, and are preferable for processing a large number of members.
- the display method using a laser is preferable to the ink-jet method from the viewpoint of maintenance because ink does not need to be used and pre-processing is not necessary in advance.
- Inspection of the bulk density of compressible materials is performed at the end of the manufacturing process.For example, when information is displayed by an inkjet, the bulk density information inspected and measured there must be transmitted directly to the inkjet printer. Keep it.
- a bar code or a number carrying the outer diameter of the 82-cam structure, the thickness of the compressible material and / or the bulk density information is read in advance by a bar code reader or the like.
- the read dimensional information is instantly transmitted to the metal container production line.
- the metal container is formed into a can body by rolling a thin metal plate to a predetermined size using a press jig and joining the gaps by welding.
- the above information is transmitted to the can body manufacturing apparatus, and the dimensions of the can body are determined based on the information. In this way, the clearance between the 82-cam structure and the metal container (can) is controlled, and an optimal combination is realized.
- the surface pressure also fluctuates depending on the bulk density of the compressible material interposed between the honeycomb structure and the metal container, an optimum combination of the clearance between the honeycomb structure and the metal container and the bulk density of the compressible material is obtained.
- the metal container and the compressible material can be selected based on the barcode information of the honeycomb structure.
- the printed character information is photographed by a CCD camera and recognized by a pattern matching method.
- characters are registered in advance, and the pattern closest to the registered characters is selected from the grayscale information of the photographed characters.
- the present inventors read the numerical information of the outer diameter and the mass indicated by the laser marking method described above using an OMRON F350 image recognition device and confirmed that the information could be transmitted without fail.
- the reading principle of the bar code reader is that a laser beam is irradiated on the bar code label, and the irregularly reflected light is received by the light receiving section of the bar code reader.
- a clamshell method As a general canning method, a clamshell method, a pushing method, or a curling method is used.
- a method of applying metal plastic working technology to reduce the outer diameter of a metal container by applying compression pressure from outside via a tap (pressing type) (swaging method). It is possible to reduce the outer diameter of the metal container and apply surface pressure by plasticizing the outer peripheral surface of the metal container using a processing jig while rotating the metal container (so-called rotary forging method). . If this method is used, it is possible to perform from canning to cone formation in a consistent processing line in combination with the recent practice of narrowing both ends of a can body by spinning to form a cone.
- the clamshell method, the pushing method, and the curling method are methods in which a compressible gripping material (compressible material) is wound on a honeycomb structure in advance, and the clamshell method is a method in which the metal is divided into two parts.
- the container is sandwiched while applying a load, and the mating surface (collar) is welded to form an integrated container.
- the press-in method is to press-fit into a one-piece metal container using a guide.
- a metal plate serving as a metal container is wound and pulled to apply a surface pressure, and a joint of the metal plates is fixed by welding.
- the mat compressible material
- the mat is displaced when the metal container is pressed from the upper and lower surfaces, and in the press method, the mat is displaced on the insertion side when inserted into the metal container. For this reason, if the displaced portion extends over a wide area, the overall surface pressure will increase.
- a suitable method for applying the surface pressure is to apply the surface pressure to the 82-cam-like structure in the metal container and to hold it in the metal container without causing the relative position of the mat and the metal container as much as possible. That is. From this point of view, the wind-drawing method, the swaging method, and the rotary forging method require that the can body surrounds the cell structure wrapped in the compressible material before applying the surface pressure.
- the relative displacement between the can body and the compressible material is small, which is desirable.
- the pushing method is used only as a method of arranging the honeycomb-shaped structure in the can body, and a swaging method or a rotary forging method can be used as a means for applying a surface pressure.
- the present invention when assembling an assembly in which a cell structure is housed and held in a metal container via a compressible material, the external dimensions of members such as a cell structure constituting the assembly are described. Even if there is variation, the influence can be suppressed and an appropriate gripping state without breakage of the cell structure can be easily obtained.
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01982801A EP1334794B1 (en) | 2000-11-17 | 2001-11-16 | Assembly method utilizing display information |
DE60120742T DE60120742T2 (de) | 2000-11-17 | 2001-11-16 | Montageverfahren unter verwendung von einer informationsanzeige |
CA002396892A CA2396892C (en) | 2000-11-17 | 2001-11-16 | Assembly method utilizing display information, and assembly fabricated by the assembly method |
US10/169,847 US6948243B2 (en) | 2000-11-17 | 2001-11-16 | Assembly method using marked information and assembly assembled by said assembling method |
AU2002214297A AU2002214297A1 (en) | 2000-11-17 | 2001-11-16 | Assembly method utilizing display information, and assembly fabricated by the assembly method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2000351679 | 2000-11-17 | ||
JP2000-351679 | 2000-11-17 |
Publications (1)
Publication Number | Publication Date |
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WO2002040215A1 true WO2002040215A1 (fr) | 2002-05-23 |
Family
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Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/010004 WO2002040216A1 (fr) | 2000-11-17 | 2001-11-16 | Procede d'assemblage a l'aide d'informations d'affichage et ensemble fabrique selon ledit procede d'assemblage |
PCT/JP2001/009999 WO2002040157A1 (fr) | 2000-11-17 | 2001-11-16 | Procede de traitement comprenant l'utilisation d'informations d'affichage et structure cellulaire traitee a l'aide du procede de traitement |
PCT/JP2001/010003 WO2002040215A1 (fr) | 2000-11-17 | 2001-11-16 | Procede d'assemblage a l'aide d'informations d'affichage et ensemble fabrique selon ledit procede d'assemblage |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2001/010004 WO2002040216A1 (fr) | 2000-11-17 | 2001-11-16 | Procede d'assemblage a l'aide d'informations d'affichage et ensemble fabrique selon ledit procede d'assemblage |
PCT/JP2001/009999 WO2002040157A1 (fr) | 2000-11-17 | 2001-11-16 | Procede de traitement comprenant l'utilisation d'informations d'affichage et structure cellulaire traitee a l'aide du procede de traitement |
Country Status (7)
Country | Link |
---|---|
US (3) | US6948243B2 (ja) |
EP (3) | EP1350567B1 (ja) |
AT (1) | ATE432769T1 (ja) |
AU (3) | AU2002214297A1 (ja) |
CA (1) | CA2396892C (ja) |
DE (3) | DE60138917D1 (ja) |
WO (3) | WO2002040216A1 (ja) |
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- 2001-11-16 CA CA002396892A patent/CA2396892C/en not_active Expired - Fee Related
- 2001-11-16 AU AU2002214297A patent/AU2002214297A1/en not_active Abandoned
- 2001-11-16 US US10/169,847 patent/US6948243B2/en not_active Expired - Lifetime
- 2001-11-16 AU AU2002214298A patent/AU2002214298A1/en not_active Abandoned
- 2001-11-16 DE DE60138917T patent/DE60138917D1/de not_active Expired - Lifetime
- 2001-11-16 WO PCT/JP2001/010004 patent/WO2002040216A1/ja active IP Right Grant
- 2001-11-16 EP EP01982802A patent/EP1334795B1/en not_active Expired - Lifetime
- 2001-11-16 US US10/169,794 patent/US7721438B2/en active Active
- 2001-11-16 DE DE60120743T patent/DE60120743T2/de not_active Expired - Lifetime
- 2001-11-16 AT AT01982798T patent/ATE432769T1/de not_active IP Right Cessation
- 2001-11-16 WO PCT/JP2001/009999 patent/WO2002040157A1/ja active Application Filing
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EP1462171A1 (en) * | 2003-03-28 | 2004-09-29 | Ngk Insulators, Ltd. | Water absorption measuring method of porous cell structure, water absorption information display method and method for carrying a catalyst on a porous support |
EP1726797A1 (en) | 2005-05-27 | 2006-11-29 | Ibiden Co., Ltd. | Honeycomb structured body |
Also Published As
Publication number | Publication date |
---|---|
US6948243B2 (en) | 2005-09-27 |
US7325308B2 (en) | 2008-02-05 |
US20030000089A1 (en) | 2003-01-02 |
EP1334795B1 (en) | 2006-06-14 |
EP1334795A1 (en) | 2003-08-13 |
AU2002214297A1 (en) | 2002-05-27 |
DE60138917D1 (de) | 2009-07-16 |
ATE432769T1 (de) | 2009-06-15 |
AU2002214295A1 (en) | 2002-05-27 |
DE60120742T2 (de) | 2007-06-06 |
EP1350567B1 (en) | 2009-06-03 |
CA2396892C (en) | 2005-09-20 |
DE60120743T2 (de) | 2007-06-14 |
WO2002040157A1 (fr) | 2002-05-23 |
WO2002040216A1 (fr) | 2002-05-23 |
EP1334794A4 (en) | 2004-06-23 |
EP1334794B1 (en) | 2006-06-14 |
EP1334795A4 (en) | 2004-06-23 |
DE60120742D1 (de) | 2006-07-27 |
EP1350567A4 (en) | 2004-05-19 |
AU2002214298A1 (en) | 2002-05-27 |
DE60120743D1 (de) | 2006-07-27 |
CA2396892A1 (en) | 2002-05-23 |
US20050100486A1 (en) | 2005-05-12 |
US7721438B2 (en) | 2010-05-25 |
US20040013582A1 (en) | 2004-01-22 |
EP1334794A1 (en) | 2003-08-13 |
EP1350567A1 (en) | 2003-10-08 |
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