| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 433/141 | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
 | 143,084 | Sep. 23, 1873 | J.K. Laudermilch | Improvement in jeweler's drilling devices | |
| 157,099 | Nov. 24, 1874 | D.D. MacKay | Improvement in hand-drills for drilling metal | ||