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All Patents in class 82/1.11
Patents 1 - 10 of 22
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PictureNumberDatePatenteeTitle
318,526May 26, 1885F. Waite, F.H. TidgewellTaper Measuring Tool
849,329Apr. 02, 1907W.U. ColtharManufacture of cutting-disks
1,191,305Jul. 18, 1916F.K. HendricksonMultiple-tool turning-lathe
  1,318,045Oct. 07, 1919E. Becker, Administrator, J. Becker, deceased (Estate of)Art of Cutting Screw Threads
  1,468,935Sep. 25, 1923W.W. VosperPipe-Cutting Machine
  1,899,608Feb. 28, 1933E.C. BullardMetal Working
1,949,512Mar. 06, 1934C.H. NortonMethod of turning and grinding round work surfaces
  2,044,497Jun. 16, 1936B.P. SchiltzMethod of Machining Metallic Workpieces
  2,141,466Dec. 27, 1938W.R. Meyer, W.F. GroeneMethod of Machining Crankshafts
2,148,348Feb. 21, 1939W.F. Groene, H.J. SiekmannTurret lathe
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