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| All Patents in class 123/144 | |||||
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| Number | Date | Patentee | Title | Type | |
| 49,346 | Aug. 08, 1865 | P. Hugon | Gas Engine | gas and gasoline engines | |
| 73,816 | Jan. 28, 1868 | W.H. Laubach | Gas Engine | ignition systems | |
| 151,129 | May 19, 1874 | J. Hock | Petroleum Dynamic Engines | gas and gasoline engines | |
| 153,245 | Jul. 21, 1874 | G.W. Daimler | Gas Motor Engines | gas and gasoline engines | |
| 168,623 | Oct. 11, 1875 | G.W. Daimler | Air and Gas Engine | gas and gasoline engines | |
| 192,206 | Jun. 19, 1877 | J. Wertheim | Atmospheric Gas Engine | gas and gasoline engines | |
| 194,047 | Aug. 14, 1877 | N.A. Otto | Gas-Motor engines | gas and gasoline engines | |
| 196,473 | Oct. 23, 1877 | W.J. Crossley, F.W. Crossley, N.A. Otto | Gas Motor Engine | gas and gasoline engines | |
| 213,539 | Mar. 25, 1879 | W. Hees, W. Wittig | Gas-Engine | gas and gasoline engines | |
| 226,972 | Apr. 27, 1880 | E. Buss | Gas-Engine | gas and gasoline engines | |
| 232,987 | Oct. 05, 1880 | C. Linford | Gas Engine | gas and gasoline engines | |
| 236,258 | Jan. 04, 1881 | J. Ravel | Oscillating Gas Motor | gas and gasoline engines | |
| 245,218 | Aug. 02, 1881 | A.K. Rider | Gas Engine | gas and gasoline engines | |
| 247,741 | Oct. 04, 1881 | E. Bénier | Gas Engine | gas and gasoline engines | |
| 253,709 | Feb. 14, 1882 | R. Hutchinson | Gas Engine | gas and gasoline engines | |