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http://www.google.com/patents/US3509484?utm_source=gb-gplus-share
Patent US3509484 - CI. GOLR
CI. GOLR
Philip Basse et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 3509484
Filing date
: Mar 25, 1968
Issue date
: Apr 28, 1970
Plain text
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