| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for W. D. Lewis | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 52,244 | Jan. 23, 1866 | C. Forster | Improvement in Lathes for Turning Spherical Shot and Shell | cannons | |
| 444,475 | Jan. 13, 1891 | J. Rockwell, A. Weed | Device for raising and lowering propellers | boats and ships | |