| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Willard E. Sibley | |||||
      | |||||
| Number | Title | Classification(s) | |||
| 45,351 | Improvement in dovetailing-machines | 144/278.1, 144/85 | |||
| 53,236 | Improvement in gearing for grinding or other rollers | 74/665.0GA, 74/665R | |||
| 103,670 | Improvement in machine for cutting dovetails | 144/85 | |||
| 291,235 | Pencil-sharpener | 144/205, 144/28.8, 279/101, 451/296, 451/307 | |||