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Patents for Orrin William Barker
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
CA-429,165Jul. 31, 1945F.D. Boehmer, K.A. Riedel, O.W. Barker, J.B. ArmitageMachine toolhorizontal boring mills
CA-435,500Jun. 25, 1946J.B. Armitage, O.W. BarkerMachine toolmilling machines
CA-437,644Oct. 29, 1946J.B. Armitage, O.W. BarkerMachine-tool transmission and controlmilling machines
CA-513,572Jun. 07, 1955J.B. Armitage, O.W. BarkerMilling and boring machinesmilling machines
CA-586,714Nov. 10, 1959O.W. Barker, R.E. Saving, L.D. LibbyRotary head milling attachmentmilling machine accessories
CA-614,491Feb. 14, 1961J.G. Osburn, O.W. BarkerBacklash eliminatormetalworking machine mechanisms
CA-634,743Jan. 16, 1962F. Zankl, J.G. Osburn, O.W. Barker, J.L. MartinTransmission and control mechanismmilling machines
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