| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Edward Weissenborn | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 68,819 | Sep. 10, 1867 | E. Weissenborn | Improvement in machines for making lead pencils | pencil making machines | |
| 341,080 | May 04, 1886 | E. Weissenborn | Calipers or Dividers | calipers | |
| 341,081 | May 04, 1886 | E. Weissenborn | Compass Attachment for Pencils | compasses | |