|
| US4036345 | 9 Jul 1975 | 19 Jul 1977 | Hydaroll Limited | Conveyors |
| US4087088 | 24 Sep 1976 | 2 May 1978 | | Moving artificial ski surface construction |
| US4179539 | 16 Aug 1978 | 18 Dec 1979 | | Ski slope |
| US4860875 | 29 Oct 1987 | 29 Aug 1989 | | Roll-block and to a roll-way assembled from roll blocks |
| US5018721 | 20 Feb 1990 | 28 May 1991 | | Sliding device |
| US8123023 | 2 Mar 2009 | 28 Feb 2012 | Pitney Bowes Inc. | Mailpiece conveyance system |
| USD627025 | 29 Jul 2003 | 9 Nov 2010 | gst global sports technology GmbH | Sheet of material having a textured top surface upon which devices including snowboards and skis slide |
