| Patents for J. Thompson & Sons Mfg. Co. |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 620,941 | Mar. 14, 1899 | G.W. Lewis | Explosive Engine | gas and gasoline engines |
| 621,110 | Mar. 14, 1899 | G.W. Lewis | Gas or Vapor Engine | gas and gasoline engines |
| 640,393 | Jan. 02, 1900 | G.W. Lewis | Gas Engine | gas and gasoline engines |
| 640,394 | Jan. 02, 1900 | G.W. Lewis | Gas Engine | gas and gasoline engines |
| 640,672 | Jan. 02, 1900 | G.W. Lewis | Gas Engine | gas and gasoline engines |
| 640,673 | Jan. 02, 1900 | G.W. Lewis | Gas Engine | gas and gasoline engines |
| 640,674 | Jan. 02, 1900 | G.W. Lewis | Explosive Engine | gas and gasoline engines |
| 640,675 | Jan. 02, 1900 | G.W. Lewis | Explosive Engine | gas and gasoline engines |
