B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
255/11
B23K 9/02 (2006.01) E21B 10/18 (2006.01) E21B 10/46 (2006.01) E21B 10/60 (2006.01)
Patent
CA 994321
Feenstra Robijn
Pols Albert C.
LandOfFree
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