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Joseph E. Backofen Jr.
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Herndon, VA, US
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Patents Grants
last 30 patents
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Patent Grant
Shaped charge with explosively driven liquid follow through
Patent number
4,955,939
Issue date
Sep 11, 1990
The United States of America as represented by the Secretary of the Navy
James A. Petrousky
F42 - AMMUNITION BLASTING
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Patent Grant
Disintegrating tamper mass
Patent number
4,628,819
Issue date
Dec 16, 1986
The United States of America as represented by the Secretary of the Navy
Joseph E. Backofen
F42 - AMMUNITION BLASTING
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Patent Grant
Portable pressure vessel and closure
Patent number
4,056,212
Issue date
Nov 1, 1977
The United States of America as represented by the Secretary of the Army
Jon Petty
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL