| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for William P. Johnson | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 923,848 | Jun. 08, 1909 | W.P. Johnson | Bit-brace | ||
| 1,254,753 | Jan. 29, 1918 | C.H. Whipple | Machine for Manufacturing Twist Drills & Other Articles | making drills and augers | |