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http://www.google.ca/patents/US2946486?utm_source=gb-gplus-share
Patent US2946486 - GILMONT
GILMONT
Roger Gilrflont et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 2946486
Filing date
: 29 May 1957
Issue date
: 26 Jul 1960
Plain text
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