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http://www.google.com/patents/US3564211?utm_source=gb-gplus-share
Patent US3564211 - FEEDING MECHANISMS FOR CARD READERS
FEEDING MECHANISMS FOR CARD READERS
Three Old Reaville Road et al
Overview
Abstract
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Description
Claims
Patent number
: 3564211
Filing date
: Oct 12, 1967
Issue date
: Feb 16, 1971
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