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All Patents in class 451/247
Patents 16 - 30 of 42
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NumberDatePatenteeTitleType
1,732,119Oct. 15, 1929A.L. BrownAutomatic combined turning lathe and sander for woodworkpattern lathes
1,773,937Aug. 26, 1930G.W. BinnsGrinding Machinerygrinding machines
1,814,351Jul. 14, 1931F.J. ThelerGrinding Machinerygrinding machines
1,864,589Jun. 28, 1932H. ErnstGrinding Machinerygrinding machines
1,891,657Dec. 20, 1932F.J. ThelerGrinding Machinegrinding machines
1,900,112Mar. 07, 1933J.H. HoernGrinding machinecylindrical grinders
1,904,304Apr. 18, 1933R.E. FlandersMethod and Machine for Grinding Chaserstool grinders
1,921,715Aug. 08, 1933W.M. Whitney, A. WhiteWood shaperwood shapers
1,952,130Mar. 27, 1934F.S. Haas, R.E. HarrisonBrake Shoe Grindergrinding machines
1,952,182Mar. 27, 1934B.R. PurvinGrinding Machinegrinding machines
1,991,712Feb. 19, 1935F.J. ThelerGrinding Machinegrinding machines
1,993,831Mar. 12, 1935A.H. DallApparatus for Producing Surfaces of Revolution Eccentric to One Anothergrinding machines
2,035,737Mar. 31, 1936G.W. Binns, L.E. MehlhopeGrinding Machinegrinding machines
2,059,895Nov. 03, 1936C.H. Norton, A.G. BeldenGrinding machinecylindrical grinders
2,105,872Jan. 18, 1938A.L. WarnerGrinding machinesharpeners
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