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http://www.google.com.au/patents/US3228017?utm_source=gb-gplus-share
Patent US3228017 - TAPE RECORDINGX A APPARATUS WITH
TAPE RECORDINGX A APPARATUS WITH
James R. Owen et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 3228017
Filing date
: 5 Oct 1962
Issue date
: 1966
Plain text
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