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All Patents in class 318/380
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
273,208Feb. 27, 1883S.S. WheelerElectric Elevatrorelevators and lifts
324,621Aug. 18, 1885S.S. WheelerElectric Elevatorelevators and lifts
458,587Sep. 01, 1891J.C. LincolnElectric brakemotor brakes
925,355Jun. 15, 1909B.G. LammeMethod of and Means for Operating Dynamo Electric Machineselectric motor making
1,117,140Nov. 10, 1914J.A. OsbornPortable electrically-driven toolhandheld power drills
RE14,540Oct. 22, 1918S.H. Keefer, estate of (deceased)Planer and System of Motor Control Thereformachine tool controls
2,441,291May 11, 1948E.J. RiveiraSpindle Positioning Mechanismmetalworking machine mechanisms
2,656,589Oct. 27, 1953R.B. Lesher, C.E. GreeneSemiautomatic Turret Latheturret lathes
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