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All Patents in class 123/81B
Patents 1 - 10 of 10
First set of recordsLast set of records
NumberDatePatenteeTitleType
69,232Sep. 24, 1867J. McConnellRotary Steam Valvesteam engine valves
306,933Oct. 21, 1884S. LawsonGas Enginegas and gasoline engines
307,057Oct. 21, 1884S. LawsonGas Enginegas and gasoline engines
396,022Jan. 08, 1889J.C. BeckfeldGas Enginegas and gasoline engines
433,246Jul. 29, 1890S. LawsonValve for Gas Enginesinternal combustion engine valves
509,981Dec. 05, 1893C.B. WattlesGas Motor Engine
555,355Feb. 25, 1896A.A. Williams, C.W. AgerellGas Enginegas and gasoline engines
584,188Jun. 08, 1897S.D. McLelland, P.B. McLellandGas or Vapor Engine
873,963Dec. 17, 1907B.A. SlocumInternal Combustion Engineinternal combustion engines
1,112,842Oct. 06, 1914C.E. SargentInternal Combustion Engine internal combustion engines
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