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http://www.google.ca/patents/US3831197?utm_source=gb-gplus-share
Patent US3831197 - ARTICLE HANDLING AND DATA RETRIEVAL
ARTICLE HANDLING AND DATA RETRIEVAL
Junge; Henry J. Zeirtgraf et al
Overview
Abstract
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Description
Claims
Patent number
: 3831197
Filing date
: 30 Jul 1970
Issue date
: 8 Jun 1974
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