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All Patents in class 123/25D
Patents 1 - 4 of 4
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
291,102Jan. 01, 1884J. SpielGas Motor
  548,142Oct. 15, 1895H. SchummApparatus for Working Gas or Oil Engines
  597,860Jan. 25, 1898S. RolfeExplosion Engine
861,411Jul. 30, 1907C.W. WeissInternal Combustion Engine
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