| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Howard E. Stoughton | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 438,860 | Oct. 21, 1890 | H.L. Pratt | Auger-Handle | auger handles | |
| 529,401 | Nov. 20, 1894 | H. Pratt, W.H. McCoy | Spiral screw driver and drill | spiral screwdrivers | |