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Patents for H. J. Livermore
Patents 1 - 6 of 6
First set of recordsLast set of records
580,685Apr. 13, 1897O.B. HallPipe Wrenchpipe wrenches
612,756Oct. 18, 1898J.A. OstenbergGas Enginegovernors
648,520May 01, 1900J.A. OstenbergCircuit Breaker for Gas Enginesignition systems
713,792Nov. 18, 1902J.A. OstenbergExplosive Engine
860,116Jul. 16, 1907H.A. BalcomeMotor-clutchindustrial machine clutches
860,132Jul. 16, 1907H.J. HeeneySignal-drop
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