F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
166/62
F16L 37/08 (2006.01) E21B 23/02 (2006.01) E21B 43/10 (2006.01)
Patent
CA 1011650
Nelson Norman A.
Putch Samuel W.
LandOfFree
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