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Patents for Marshall Field
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
AU-120,058Jun. 11, 1945C.A. Wiken, H.V. BoehnkeDrilling machinedrill presses
GB-574,335Jan. 01, 1946C.A. WikenGrindercutter grinding
GB-583,087Dec. 09, 1946C.A. Wiken, H.V. BoehnkeDrilling and like machinesdrilling and boring
GB-583,106Dec. 09, 1946C.A. Wiken, H.V. BoehnkeDrilling and like machinesdrill presses
AU-123,057Jan. 16, 1947C.A. Wiken, E.A. ReisigMachine toolssurface grinders
AU-125,599Oct. 09, 1947C.A. Wiken, E.A. ReisigImprovements in or relating to machine toolssurface grinders
AU-125,600Oct. 09, 1947C.A. Wiken, E.A. ReisigImprovements in or relating to machine toolssurface grinders
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