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Patents for Louis W. Gratz
Patents 1 - 13 of 13
First set of recordsLast set of records
681,391Aug. 27, 1901J.B. FennerMuffler for Gas or Other Enginesmufflers
705,596Jul. 29, 1902J.G. MorithPipe Wrenchpipe wrenches
706,916Aug. 12, 1902J.B. FennerFuel Valve for Gas Enginesinternal combustion engine valves
757,064Apr. 12, 1904H.J. SmithElectric Igniter for Gas Enginesignition systems
801,927Oct. 17, 1905H.J. SmithFuel Mixing Device for Gas Enginescarburetors
805,000Nov. 21, 1905W.E. BlairDriving Mechanism for two Pump-Plungersfuel pumps
818,714Apr. 24, 1906H.J. SmithValve Mechanism for Gas Enginesinternal combustion engine valves
829,166Aug. 21, 1906C.W. ManzelLubricatortool lubricators
832,265Oct. 02, 1906C.W. ManzelLubricating Devicetool lubricators
844,157Feb. 12, 1907L.R. LoughboroughDrafting Instrumentsquares
920,769May 04, 1909C.W. ManzelLubricatortool lubricators
936,898Oct. 12, 1909C. HollyLooping Machinebook binder
1,003,189Sep. 12, 1911C.W. ManzelLubricatortool lubricators
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