| All Patents in class 123/41R |
Patents 16 -
30
of 39
      |
| Number | Date | Patentee | Title | Type |
| 610,004 | Aug. 30, 1898 | A.H. Dingman | Gas Engine | gas and gasoline engines |
| 625,416 | May 23, 1899 | L.L. Revel | Carbureted Air or Other Fluid Pressure Engine | gas and gasoline engines |
| 627,219 | Jun. 20, 1899 | E.J. Woolf | Air and Gas Engine | gas and gasoline engines |
| 627,220 | Jun. 20, 1899 | E.J. Woolf | Air and Gas Engine | gas and gasoline engines |
| 646,322 | Mar. 27, 1900 | C. Sintz | Explosive Engine | ignition systems |
| 646,993 | Apr. 10, 1900 | C.A. Scott | Explosion Engine | gas and gasoline engines |
| 651,741 | Jun. 12, 1900 | J.C. Anderson | Explosive Liquid-Air Engine | internal combustion engines |
| 651,780 | Jun. 12, 1900 | H.A. Dawson, H.T. Dawson | Internal-Combustion Motor | gas and gasoline engines |
| 654,761 | Jul. 31, 1900 | G. Palm | Combined Steam and Explosive Engine | steam engines |
| 657,662 | Sep. 11, 1900 | F.A. La Roche | Controlling Means for Explosive-Engines | gas and gasoline engines |
| 661,369 | Nov. 06, 1900 | F.C. Dyckhoff | Valve-Gear for Explosive-Engines | valve gear |
| 663,106 | Dec. 04, 1900 | H.W. Struss | Explosion Engine | internal combustion engines |
| 681,162 | Aug. 20, 1901 | A.C. Wolfe | Gas or Other Explosive Engine | gas and gasoline engines |
| 715,008 | Dec. 02, 1902 | C.A. Braden | Steam Explosive Engine | steam engines |
| 874,177 | Dec. 17, 1907 | F.T. Flinchbaugh | Reverse Gear for Four Cycle Combustion Engines | reverse gear apparatus |
