| All Patents in class 123 |
Patents 1051 -
1065
of 1748
      |
| Number | Date | Patentee | Title | Type |
| 647,946 | Apr. 24, 1900 | W.H. Cotton | Electric Igniter for Gas-Engines | ignition systems |
| 648,122 | Apr. 24, 1900 | W.P. Davis | Electric Igniter for Explosive Engines | ignition systems |
| 648,520 | May 01, 1900 | J.A. Ostenberg | Circuit Breaker for Gas Engines | ignition systems |
| 648,689 | May 01, 1900 | L. Hutchinson | Igniting Device for Gas-Engines | ignition systems |
| 648,914 | May 08, 1900 | H.A. Bertheau | Vaporizer for Petroleum-Motors | carburetors |
| 649,441 | May 15, 1900 | C.E. Duryea | Sparking Igniter for Explosive-Engines | ignition systems |
| 649,713 | May 15, 1900 | D. Barckdall, W.J. Woodward | Explosive Engine | gas and gasoline engines |
| 649,778 | May 15, 1900 | D.M. Tuttle | Electrical Igniter for Gas-Engines | ignition systems |
| 650,266 | May 22, 1900 | W.J. McDuff | Feed for Explosion-Engines | fuel pumps |
| 650,549 | May 29, 1900 | F.W. Toedt | Gas Engine | gas and gasoline engines |
| 650,571 | May 29, 1900 | H. Swain | Gas or Oil Engine | gas and gasoline engines |
| 650,583 | May 29, 1900 | A.H. Goldingham | Explosive Engine | oil engines |
| 650,661 | May 29, 1900 | V.R. Stewart | Rotary Internal Combustion Engine | rotary engines |
| 650,736 | May 29, 1900 | H. Sutton | Explosive Engine | carburetors |
| 650,789 | May 29, 1900 | J.S. Losch | Gas Engine | gas and gasoline engines |
