| Patents for Northwestern Mfg. & Car Co. |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 270,743 | Jan. 16, 1883 | W.A. Clarke | Exhaust-nozzle for steam-engines | steam engines |
| 270,744 | Jan. 16, 1883 | W.A. Clarke | Cut-off valve | steam safety valves |
| 270,875 | Jan. 16, 1883 | W.A. Clarke | Steam-engine cylinder | steam engine cylinders |
| 272,648 | Feb. 20, 1883 | W.A. Clarke | Reversing-gear for steam-engines | steam engines |
| 278,223 | May 22, 1883 | W.A. Clarke | Water-gage | gauges |
| 286,906 | Oct. 16, 1883 | W.A. Clarke | Traction-engine | steam traction engines |
| 305,165 | Sep. 16, 1884 | J.H. Elward | Drop-hammer | drop hammers |
