| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | Patent number: | Patent Date: |
| Patents for Carroll H. Richards | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 948,825 | Feb. 08, 1910 | A.C. Pletz | Change-speed and reverse-drive mechanism | drill presses | |