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All Patents in class 74
Patents 2356 - 2370 of 3470
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NumberDatePatenteeTitleType
1,686,240Oct. 02, 1928D.C. KlausmeyerMultiple-lever twenty-four-speed mechanismtapping machines
1,686,383Oct. 02, 1928D.C. KlausmeyerCam Controlled Twenty-Four Speed Mechanismmetalworking speed changing mechanisms
1,687,609Oct. 16, 1928H.A. GehresDriving Mechanism for Engine Accesoriesattachments
1,688,534Oct. 23, 1928S. EinsteinVaiable Speed Spindle Drivemilling machines
1,690,568Nov. 06, 1928E.P. Bullard, Jr.Turret Head for Machine Toolsturret lathes
1,692,487Nov. 20, 1928E.L. ConnellMotor-driven threading tool
1,693,437Nov. 27, 1928G.O. Leopold, T.J. FegleyValve grinder
1,696,403Dec. 25, 1928D.C. KlausmeyerAccessible Twin Lever Gear Shift for Drill Headsmetalworking machine mechanisms
1,696,468Dec. 25, 1928J.F. BuhrMultiple-spindle drill headmultiple spindle drill presses
1,696,636Dec. 25, 1928H.L. JohnstonGrinding apparatus
1,698,827Jan. 15, 1929M. SkolnikMortising machinemortising machines
1,699,493Jan. 15, 1929A.E. RobinsonFeeding Means for Drilling Machinesradial drill presses
1,699,792Jan. 22, 1929E.P. LarshQuick-acting switchelectric switches
1,700,114Jan. 22, 1929C.H. ThompsonSurface Polishing Machinepolishing and buffing machinery
1,700,966Feb. 05, 1929H. BaerbalckMetal Working Machinerymetal shapers
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