B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
77/22
B23B 39/22 (2006.01) B24B 7/00 (2006.01) B24B 9/00 (2006.01) B28D 1/02 (2006.01)
Patent
CA 906790
Charles W. Ferguson
Robert H. Welker
LandOfFree
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