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1271513
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Information
Patent Grant
1271513
References
Source
Patent Number
1,271,513
Date Filed
Not available
Date Issued
Tuesday, July 2, 1918
106 years ago
CPC
F41A23/22 - on board of submarines
B63G8/08 - Propulsion
B63H1/12 - with rotation axis substantially in propulsive direction
US Classifications
114 - Ships
089 - Ordnance
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