| All Patents in class 123/557 |
Patents 31 -
41
of 41
      |
| Number | Date | Patentee | Title | Type |
| 595,497 | Dec. 14, 1897 | W. Rowbotham | Oil, Gas or Like Engine | oil engines |
| 597,389 | Jan. 18, 1898 | W.R. Bullis | Gasolene Engine | gas and gasoline engines |
| 598,986 | Feb. 15, 1898 | G.H. Gere | Combustible Vapor Engine | gas and gasoline engines |
| 602,820 | Apr. 26, 1898 | M. Beck | Gas Engine | gas and gasoline engines |
| 612,258 | Oct. 11, 1898 | F.S. Mead | Gas or Oil Engine | gas and gasoline engines |
| 640,083 | Dec. 26, 1899 | H.W. Bradley, H.N. Bickerton | Oil Engine | oil engines |
| 642,562 | Jan. 30, 1900 | H.F. Probert | Vaporizer for Gas Engines | fuel systems |
| 931,389 | Aug. 17, 1909 | G.L. Crook | Internal Combustion Engine | gas and gasoline engines |
| 1,308,237 | Jul. 01, 1919 | L.D. Goff, C.G. Mahana, E.D. Glidden | Internal Combustion Engine | internal combustion engines |
| 1,382,995 | Jun. 28, 1921 | H.R. Lucke | Process and Apparatus for the Utilization of Heat in Oil Engines | oil engines |
| 1,801,086 | Apr. 14, 1931 | A.C. Boock, C.B. Jahnke | Power Plant | power plants |
