| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 122/155.3 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 10,636 | Mar. 14, 1854 | E.G. Hastings | Machine for dressing stone | stone dressing machines | |
| 144,499 | Nov. 11, 1873 | A. Betts | Devices for Changing the Speed of Machinery | industrial machine speed and direction changing mechanisms | |
| 172,557 | Jan. 25, 1876 | F. Collignon | Steam Boiler | stationary boilers | |