| Patents for Charles T. Porter |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 11,492 | Aug. 08, 1854 | C.T. Porter | Stone-dressing machine |
 | 20,894 | Jul. 13, 1858 | C.T. Porter | Governor for steam-engines |
 | RE740 | Jun. 21, 1859 | C.T. Porter | Improvement in governors for steam-engines |
 | 32,583 | Jun. 18, 1861 | C.T. Porter | Marine governor |
 | 368,422 | Aug. 16, 1887 | C.T. Porter | Valve for steam-engines |
 | 391,916 | Oct. 30, 1888 | C.T. Porter | Steam-engine |
 | GB-189,407,140 | Feb. 28, 1895 | C.T. Porter | Improvements in steam-engines, and in cylinders, governors, and valve motions therefor, and in provisions for lubricating the same |
