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All Patents in class 91/285
Patents 1 - 7 of 7
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  72,714Dec. 31, 1867W. BallSteam Engine
  384,336Jun. 12, 1888W. Ross, G. RossWater-engine valve
717,136Dec. 30, 1902E.E. ThomasEngine
  1,912,413Jun. 06, 1933E.J. SvensonMilling machine
  1,998,003Apr. 16, 1935L.F. Nenninger, C.W. Goodrich, H. ErnstHydraulic Feed Control
  2,091,425Aug. 31, 1937W.H. WoodHydraulically operated machine tool
  2,108,354Feb. 15, 1938F.A. SwansonBlind end cylinder honing machine
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