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All Patents in class 81/475
Patents 1 - 13 of 13
First set of recordsLast set of records
1,684,231Sep. 11, 1928A. LevedahlStud driverhandheld power tool accessories
1,732,038Oct. 15, 1929E.L. Connell, F. SchneiderStud-setting machine
1,827,269Oct. 13, 1931G.E. SmithTool driving apparatushandheld power tools
1,855,456Apr. 26, 1932D.B. MillerPower driven screw gun with clutchhandheld power tools
1,858,276May 17, 1932D.B. MillerPower driven screw gun with clutchhandheld power tools
2,293,786Aug. 25, 1942E.C. WordenWrenchtorque wrenches
2,293,787Aug. 25, 1942E.C. WordenTorque Wrenchtorque wrenches
2,394,348Feb. 05, 1946G.C. WilhideElectric screw driver and nut runnerhandheld power drivers
2,409,545Oct. 15, 1946A.L. CornwellTorque Wrenchtorque wrenches
2,727,598Dec. 20, 1955W.G. Mitchell, F.A. KamanImpact wrench torque control
2,886,075May 12, 1959D.O. SkoogTorque release clutch drive mechanism for power operated screw drivers and the likehandheld power tools
3,012,456Dec. 12, 1961C.L. DrackaPredetermined Torque Release Wrenchtorque wrenches
3,535,958Oct. 27, 1970K.R. LarsonPreset Torqueing Devices for Measured Fastener Turningtorque wrenches
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