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All Patents in class 279/49
Patents 1 - 15 of 22
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NumberDatePatenteeTitleType
184,445Nov. 14, 1876S.N. Trump, C.N. TrumpCollet chuckdrill press chucks
195,997Oct. 09, 1877C. ElterichImprovement in drill-chucksdrill chucks
196,205Oct. 16, 1877C. Elterich, A.H. BriggsImprovement in drill-chucksdrill chucks
207,113Aug. 20, 1878C. Elterich, A.H. BriggsImprovement in drill-chucksdrill chucks
256,739Apr. 18, 1882G. RehfussDrill Chuckdrill press chucks
316,912Apr. 28, 1885W.M. PrestonFrictional centering chuck for watch makerswatchmaker
493,231Mar. 07, 1893A. MuirChuckdrill press chucks
529,401Nov. 20, 1894H. Pratt, W.H. McCoySpiral screw driver and drillspiral screwdrivers
802,449Oct. 24, 1905S.W. GoodhueCushion Tool Holder for Pneumatic Hammerstool holders
1,115,071Oct. 27, 1914N.B. HealyValve Dressing Toolvalve grinding tools
1,320,113Oct. 28, 1919E.W. BemisChuckmetal lathe chucks
1,570,251Jan. 19, 1926F.O. HoaglandCollet and collet mechanismcollets and collet holders
1,863,108Jun. 14, 1932J.C. GlenzerTool Holderdrilling and boring tool holders
1,899,843Feb. 28, 1933T.D. BascomTool holderdrill press chucks
1,973,942Sep. 18, 1934J.F. BuhrSocket Collet Structuredrill press accessories
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