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http://www.google.com/patents/US1009161?utm_source=gb-gplus-share
Patent US1009161 - SUPPLEMENTAL BARREL FOR MAGAZINE-FIREARMS
SUPPLEMENTAL BARREL FOR MAGAZINE-FIREARMS
WEBSTER L. MARBLE
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Abstract
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Description
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Patent number
: 1009161
Issue date
: Nov 21, 1911
Inventor
:
WEBSTER L. MARBLE
Current U.S. Classification
:
42/77
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