| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 221/220 | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
| 333,461 | Dec. 29, 1885 | E.L. Bowers, W.L. Grout | Machine for Drilling Metal Blanks | ||
 | 584,987 | Jun. 22, 1897 | D.H. Church | Drilling Machine | |
| 2,570,660 | Oct. 09, 1951 | R.M. Gamble | Transfer Mechanism | ||