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All Patents in class 235/61R
Patents 1 - 4 of 4
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  8,236XJun. 06, 1834D. KohlerAdding machine
  184,177Nov. 07, 1876J.C. RorickBevel-Square
697,335Apr. 08, 1902I.B. HaganMeasuring Instrument
  2,055,965Sep. 29, 1936J.W. BryceScale
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