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http://www.google.sh/patents/US2316328?utm_source=gb-gplus-share
Patent US2316328 - GUENTHER ETAL
GUENTHER ETAL
George G. Guenther et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 2316328
Filing date
: 4 Jun 1941
Issue date
: 13 Apr 1943
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