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All Patents in class 285/114
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
  213,278Mar. 18, 1879F.M. CampbellAdjustable Grain Spout
  1,253,149Jan. 08, 1918W. ChildersDrilling Tool Joint
  2,668,557Feb. 09, 1954W.G. HoelscherConduit System for Machine Tools
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