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All Patents in class 29/512
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
  218,338Aug. 05, 1879C.N. ThomasButton Machinery
1,862,793Jun. 14, 1932M.C. Dellinger, H.W. KulpValve Spring Lifter
  2,183,543Dec. 19, 1939C.W. CherryRivet and Method of Applying the Same
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