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Patrick F. Spahn
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Silver Spring, MD, US
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last 30 patents
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Patent Grant
Booster explosive rings
Patent number
5,233,929
Issue date
Aug 10, 1993
The United States of America as represented by the Secretary of the Navy
Patrick F. Spahn
F42 - AMMUNITION BLASTING
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Patent Grant
Embedded can booster
Patent number
5,221,810
Issue date
Jun 22, 1993
The United States of America as represented by the Secretary of the Navy
Patrick F. Spahn
F42 - AMMUNITION BLASTING