| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Q. S. Backus | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 35,715 | Jun. 24, 1862 | J.A. Thayer | Combination Tool | combination tools | |
| 82,583 | Sep. 29, 1868 | Q.S. Backus | Improved chuck-drill | drill bits | |
| 91,068 | Jun. 08, 1869 | Q.S. Backus | Improved vise | bench vises | |