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Patents for Van Dorn Electric Tool Co.
Patents 16 - 25 of 25
First set of recordsPrevious set of recordsLast set of records
NumberDatePatenteeTitleType
1,692,487Nov. 20, 1928E.L. ConnellMotor-driven threading tool
1,725,212Aug. 20, 1929F. SchneiderPower hammer
1,732,038Oct. 15, 1929F. Schneider, E.L. ConnellStud-setting machine
1,754,222Apr. 15, 1930E.L. ConnellElectric drill
1,762,202Jun. 10, 1930B.W. SweetSelf-opening-switch lock
1,800,264Apr. 14, 1931G.H. RempesTool socket
1,834,145Dec. 01, 1931E.L. ConnellValve seating counterboring tool
1,852,736Apr. 05, 1932E.L. ConnellDrilling or tapping machine
1,854,825Apr. 19, 1932E.L. ConnellMethod of making alpha collet
1,917,752Jul. 11, 1933E.L. ConnellCollet
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