| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Daniel Powers | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 124,089 | Feb. 27, 1872 | H.S. Shepardson | Improvement in bits | drill bits | |
| 191,815 | Jun. 12, 1877 | D. Powers | Bit-stock with gear-train multiplier | geared braces | |
| 212,110 | Feb. 11, 1879 | D. Powers, O. Peck | Improvement in bit-stocks | brace chucks | |
| 219,872 | Sep. 23, 1879 | O. Peck | Improvement in bit-stocks | brace chucks | |