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Patents for Master Electric Co.
Patents 1 - 15 of 35
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NumberDatePatenteeTitleType
1,640,900Aug. 30, 1927E.P. LarshShort circuiterrepulsion start induction run motors
1,678,517Jul. 24, 1928E.P. LarshShort circuiting device for motor commutatorsrepulsion start induction run motors
1,685,549Sep. 25, 1928E.P. LarshShort circuiterrepulsion start induction run motors
1,699,792Jan. 22, 1929E.P. LarshQuick-acting switchelectric switches
1,723,360Aug. 06, 1929E.P. LarshPump
1,735,579Nov. 12, 1929E.P. LarshShort-circuiting device for motor commutatorsrepulsion start induction run motors
1,779,006Oct. 21, 1930E.P. LarshShort circuiterrepulsion start induction run motors
1,792,645Feb. 17, 1931E.P. LarshArmature bearing for electric motorsmotor bearings
RE18,093Jun. 09, 1931E.P. LarshShort circuiting device for motor commutatorsrepulsion start induction run motors
1,895,288Jan. 24, 1933E.P. LarshBearing mountingmotor armatures
1,896,869Feb. 07, 1933E.P. LarshElectric fan
1,939,399Dec. 12, 1933E.P. LarshElectric fan
1,950,675Mar. 13, 1934D.H. HeynauFriction gear for stepless changing the rotation of a driven shaftindustrial machine speed and direction changing mechanisms
1,983,091Dec. 04, 1934E.P. LarshVariable-speed induction motorinduction motors
1,993,449Mar. 05, 1935E.P. LarshElectric motorshaded pole induction motors
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