| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for John McMahon | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 443,795 | Dec. 30, 1890 | W.R. Root | Sandpapering-machine | tool making machines | |
| 595,859 | Dec. 21, 1897 | F.B. Miller | Screw holding screwdriver | screwdriver blades | |