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| All Patents in class 123/153 | |||||
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| Number | Date | Patentee | Title | Type | |
| 663,091 | Dec. 04, 1900 | A.D. Garretson | Gas Engine | gas and gasoline engines | |
| 710,647 | Oct. 07, 1902 | L.W. Witry | Speed-regulator for explosive-engines | gas and gasoline engines | |
| 720,126 | Feb. 10, 1903 | L.A. Frayer | Speed Regulator for Explosive Engines | internal combustion engine governors | |
| 731,134 | Jun. 16, 1903 | C.E. Sargent | Electrical Igniter for Explosive Engines | ignition systems | |
| 880,650 | Mar. 03, 1908 | P. Gaeth | Sparking Igniter | ignition systems | |