| All Patents in class 123/46R |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 2,753 | Aug. 18, 1842 | A. Perry, A.M. Bouton | Mode of Changing Reciprocating into Rotary Motion for Steam Engines and Other Purposes | steam engines |
| 179,782 | Jul. 11, 1876 | F.W. Gilles | Gas Engine | gas and gasoline engines |
| 418,418 | Dec. 31, 1889 | L.H. Nash | Method of Operating Gas Engines | gas and gasoline engines |
| 424,000 | Mar. 25, 1890 | G.E. Hibbard | Rotary Gas Engine | rotary engines |
| 602,707 | Apr. 19, 1898 | G.A. Newman | Explosive Engine | internal combustion engines |
| 2,433,007 | Dec. 23, 1947 | C.S. Weyandt | Internal-combustion percussion tool | gas and gasoline engines |
