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All Patents in class 74/342
Patents 1 - 15 of 43
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NumberDatePatenteeTitleType
541,385Jun. 18, 1895C.J. PaulsonDifferential Gear Wheelmetal lathes
815,642Mar. 20, 1906W.T. SearsSpeed-changermetalworking machine mechanisms
912,609Feb. 16, 1909J.R. PerrineLathe-feed mechanismengine lathes
923,930Jun. 08, 1909H. BaerbalckMetal-planermetal planers
943,621Dec. 14, 1909A.R. Murray, L.W. AndersonChange Speed Gearingmetal shapers
1,024,220Apr. 23, 1912H.M. NorrisGearingmetalworking speed changing mechanisms
1,060,723May 06, 1913W.W. VosperPower Transmission and Control Mechanism.pipe threading machines
1,090,300Mar. 17, 1914J. HartnessVariable Speed Mechanism for Metal Working Machinesmetalworking variable speed mechanisms
1,172,341Feb. 22, 1916E.P. Bullard, Jr.Speed Changing Mechanismmetalworking speed changing mechanisms
1,233,500Jul. 17, 1917F.A. ParsonsTransmission Gearing for Milling Machinesmetalworking machine mechanisms
1,244,449Oct. 23, 1917W.R. CareyBoring and general-use machinehorizontal boring mills
1,342,928Jun. 08, 1920W.T. SearsChange-speed mechanismradial drill presses
1,395,876Nov. 01, 1921W.N. TienckenBracegeared braces
1,415,515May 09, 1922C. BouillonChange Gear Mechanismmetalworking machine mechanisms
1,475,153Nov. 20, 1923H. AthenasPortable electric combination drillhandheld power drills
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