| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for William L. Bergen | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 244,427 | Jul. 19, 1881 | W.L. Bergen | Screw Cutting Device | taps and dies | |
| 266,671 | Oct. 31, 1882 | W.L. Bergen | Plumb Bob | plumb bobs | |