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All Patents in class 73/816
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
1,533,281Apr. 14, 1925H.E. TautzTesting machine
  2,727,386Dec. 20, 1955P.H. MillerPaper Testing Machine
  2,865,199Dec. 23, 1958P.H. MillerTesting Machine for Sheet Material
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