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Patents for Harry J. Criner
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
896,439Aug. 18, 1908H.J. CrinerValveinternal combustion engine valves
953,460Mar. 29, 1910H.J. CrinerExhaust Valve Regulatorinternal combustion engine valves
998,327Jul. 18, 1911H.J. CrinerExhaust Valve Regulator
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