F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
255/50
F16D 3/06 (2006.01) E21B 3/04 (2006.01) E21B 7/02 (2006.01) E21B 19/16 (2006.01)
Patent
CA 977738
Halwas Larry E.
Hisey Robert W.
LandOfFree
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