| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for David S. Stewart | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 484,828 | Oct. 25, 1892 | D.S. Stewart | Traction Engine | traction engine tracks | |
| 484,829 | Oct. 25, 1892 | D.S. Stewart | Traction Engine | traction engine tracks | |
| 484,830 | Oct. 25, 1892 | D.S. Stewart | Traction Engine | traction engine propulsion components | |