| All Patents in class 123/543 | 
| Patents 1 - 
					9
					of 9 
       | 
| Number | Date | Patentee | Title | Type | 
| 15,438 | Jul. 29, 1856 | T.T. Prosser | Sawing machine | scrollsaws | 
| 402,549 | Apr. 30, 1889 | S. Wilcox | Gas or Oil Engine | gas and gasoline engines | 
| 523,511 | Jul. 24, 1894 | H. Campbell | Oil Engine | oil engines | 
| 532,098 | Jan. 08, 1895 | J. Robison | Gas, Oil or Vapor Engine |  | 
| 532,100 | Jan. 08, 1895 | J. Robison | Vaporizing and Ignition Device | carburetors | 
| 532,219 | Jan. 08, 1895 | A. Spiel, C. Spiel | Hydrocarbon Engine |  | 
| 580,444 | Apr. 13, 1897 | H.C. Baker | Gas Engine | internal combustion engine valves | 
| 597,860 | Jan. 25, 1898 | S. Rolfe | Explosion Engine | oil engines | 
| 1,801,086 | Apr. 14, 1931 | A.C. Boock, C.B. Jahnke | Power Plant | power plants |