| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for W. Prall | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| XC-3,131 | Apr. 08, 1869 | W. Prall | Improvement on adjusting pinions on horse powers and other machinery | animal powered apparatus | |