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All Patents in class 33/632
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
407,617Jul. 23, 1889F.A. SeaverCentering Device
1,406,262Feb. 14, 1922M.R. KronertTool for Laying Out Keyways
  1,422,746Jul. 11, 1922K.W. CouseKeyway Locator
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