F - Mech Eng,Light,Heat,Weapons – 42 – D
Patent
F - Mech Eng,Light,Heat,Weapons
42
D
102/10, 262/67
F42D 1/045 (2006.01) E21C 37/00 (2006.01) E21C 41/00 (2006.01) E21D 9/00 (2006.01) F42D 1/04 (2006.01)
Patent
CA 943812
Bergmann Oswald R.
Coursen David L.
LandOfFree
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