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Patents for Williams Tool Corp. of Canada, Ltd.
Patents 1 - 12 of 12
First set of recordsLast set of records
NumberDatePatenteeTitleType
CA-211,956May 24, 1921C.F. WilliamsThread cutting machinemetal threading machines
CA-243,035Sep. 16, 1924L.S. HallPipe threading machinepipe threading machines
1,527,185Feb. 24, 1925L.S. HallPipe-threading machinepipe threading machines
CA-248,427Mar. 31, 1925L.S. HallPipe threading machinepipe threading machines
CA-253,990Sep. 22, 1925L.S. HallLubricating device for threading machinespipe threading machines
CA-253,991Sep. 22, 1925L.S. HallCutting off and reaming attachment for threading machinespipe threading machines
CA-253,992Sep. 22, 1925L.S. HallSteadying block for threading machinespipe threading machines
CA-253,993Sep. 22, 1925L.S. HallDie head for threading machinespipe threading machines
CA-253,994Sep. 22, 1925L.S. HallChaser bit holder for threading machinespipe threading machines
CA-255,579Nov. 17, 1925L.S. HallPipe threading machinepipe threading machines
CA-260,513May 04, 1926L.S. HallThreading machinepipe threading machines
CA-263,252Aug. 03, 1926L.S. HallBelt tensioning devicepipe threading machines
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