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http://www.google.com.au/patents/US3463050?utm_source=gb-gplus-share
Patent US3463050 - APPARATUS FOR CUTTING A VARIABLE OR
APPARATUS FOR CUTTING A VARIABLE OR
James C. Machen et al
Overview
Abstract
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Description
Claims
Patent number
: 3463050
Filing date
: 30 Oct 1967
Issue date
: 26 Aug 1969
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