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http://www.google.com/patents/US3067972?utm_source=gb-gplus-share
Patent US3067972 - JAMES K
JAMES K
James K. Mosher et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 3067972
Filing date
: May 13, 1959
Issue date
: Dec 11, 1962
Plain text
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