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http://www.google.ca/patents/US3093274?utm_source=gb-gplus-share
Patent US3093274 - GALBIERZ
GALBIERZ
Jerome J. Galbierz et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 3093274
Filing date
: 27 Jun 1960
Issue date
: 11 Jun 1963
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