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http://www.google.com.au/patents/US3834689?utm_source=gb-gplus-share
Patent US3834689 - WEB FOLDING APPARATUS
WEB FOLDING APPARATUS
Lee; Warren R. Furbeck et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 3834689
Filing date
: 7 Apr 1972
Issue date
: 1974
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