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All Patents in class 451/505
Patents 1 - 5 of 5
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
1,045,201Nov. 26, 1912C.G. ShoopPneumatic roll
1,487,256Mar. 18, 1924A.W. MallPneumatic abrading cushion
1,493,779May 13, 1924H. HumphreysPneumatic sanding pad
  2,116,272May 03, 1938A.W. MallAbrasive wheel
  2,505,680Apr. 25, 1950A.W. MallPneumatic sanding wheel
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