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All Patents in class 451/517
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  2,242,545May 20, 1941C.H. RandolphRubbing machine
  2,464,296Mar. 15, 1949G.H. EkstromPad attaching means for rubbing machines and the like
  2,505,683Apr. 25, 1950C.D. MccarthyAbrasive shoe for rubbing machines
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