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http://www.google.co.uk/patents/US2696989?utm_source=gb-gplus-share
Patent US2696989 - KLEINMAN
KLEINMAN
Harry Kleinman et al
› Overview
Abstract
Drawings
Description
Claims
Patent number
: 2696989
Filing date
: 27 Jan 1953
Issue date
: 14 Dec 1954
Inventors
:
Harry Kleinman
,
Harry Kleinman
Current U.S. Classification
:
280/11.27
;
280/11.209
View patent at USPTO
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Drawings
Drawings