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| All Patents in class 123/196CP | |||||
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| Number | Date | Patentee | Title | Type | |
| 386,208 | Jul. 17, 1888 | L.H. Nash | Gas Engine | gas and gasoline engines | |
| 661,599 | Nov. 13, 1900 | J. Day | Oil Engine | oil engines | |
| 683,886 | Oct. 01, 1901 | E.J. Woolf | Explosive Engine | internal combustion engines | |
| 824,396 | Jun. 26, 1906 | E.J. Woolf | Explosive Engine | internal combustion engines | |
| 877,023 | Jan. 21, 1908 | C.H. Way | Engine | internal combustion engine lubrication | |
| 1,825,318 | Sep. 29, 1931 | L.B. Kapp | Pump | internal combustion engine lubrication | |