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All Patents in class 123/402
Patents 1 - 4 of 4
First set of recordsLast set of records
77,387Apr. 28, 1868W.H. LaubachValve for Gas Engineinternal combustion engine valves
408,683Aug. 13, 1889C.W. BaldwinGas Enginegas and gasoline engines
705,058Jul. 22, 1902J.B. FennerOperating Mechanism for Gas Engine Valves, &c.internal combustion engine valves
706,916Aug. 12, 1902J.B. FennerFuel Valve for Gas Enginesinternal combustion engine valves
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