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http://www.google.ca/patents/US2987833?utm_source=gb-gplus-share
Patent US2987833 - STOLPEN
STOLPEN
Beulah Harris Stolpen et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 2987833
Filing date
: 17 Oct 1958
Issue date
: 13 Jun 1961
Plain text
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