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All Patents in class 181/269
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  542,124Jul. 02, 1895J.A. Drake, A.J. Drake, J.E. WeymanGas or Other Like Motor
  593,970Nov. 16, 1897C.A. SchwarmMuffler for Gas Engines
  1,877,296Sep. 13, 1932M.J. GoldbergCleaning and Silencing Means for Engine Exhausts
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