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All Patents in class 123/55.4
Patents 1 - 5 of 5
First set of recordsLast set of records
2,753Aug. 18, 1842A. Perry, A.M. BoutonMode of Changing Reciprocating into Rotary Motion for Steam Engines and Other Purposessteam engines
9,103Jul. 06, 1852E. RogersMode of Grinding Puppet-Valves While the Engine is in Motionsteam engine valves
480,019Aug. 02, 1892J. JoyceExplosive Enginegas and gasoline engines
540,923Jun. 11, 1895C.M. RhodesGas Engineinternal combustion engines
1,231,572Jul. 03, 1917F.M. DavisValve mechanisminternal combustion engine valves
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