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http://www.google.com.au/patents/USD317610?utm_source=gb-gplus-share
Patent USD317610 - Headphone earpiece
Headphone earpiece
Nicolette A. Jahnke
Overview
Abstract
Drawings
Description
Claims
Patent number
: D317610
Filing date
: 7 Oct 1988
Issue date
: 18 Jun 1991
Plain text
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