| All Patents in class 123/50R |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 195,585 | Sep. 25, 1877 | F. Dieckmann | Gas-Engines | gas and gasoline engines |
| 528,105 | Oct. 23, 1894 | H.B. Migliavacca | Gas Engine | gas and gasoline engines |
| 558,943 | Apr. 28, 1896 | L.S. Gardner | Vapor Motor | |
| 585,601 | Jun. 29, 1897 | H.B. Steele | Gas Engine | gas and gasoline engines |
| 598,496 | Feb. 08, 1898 | L.F. Burger | Gas Engine | gas and gasoline engines |
| 1,913,251 | Jun. 06, 1933 | E.A. Smith | Internal Combustion Engine | internal combustion engines |
| 2,031,535 | Feb. 18, 1936 | E. Kiecksee | Ram | handheld power hammers |
