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http://www.google.com.au/patents/US3865108?utm_source=gb-gplus-share
Patent US3865108 - EXPANDABLE DRUG DELIVERY DEVICE
EXPANDABLE DRUG DELIVERY DEVICE
William L. Hartop et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 3865108
Filing date
: 9 Jul 1973
Issue date
: 1 Feb 1975
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