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http://www.google.com.au/patents/US3606889?utm_source=gb-gplus-share
Patent US3606889 - GUARD ACCESSORY FOR CATHETER
GUARD ACCESSORY FOR CATHETER
Dennis Arblaster et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 3606889
Filing date
: 30 Jul 1969
Issue date
: 21 Sep 1971
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