| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for William Pratt | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
 | 79,684 | Jul. 07, 1868 | W. Pratt | Tool-holder for engine-lathes and planing-machines | |
 | 158,998 | Jan. 19, 1875 | B.F. Sturtevant | Improvement in mechanisms for compressing points on pegs | |
 | 159,860 | Feb. 16, 1875 | B.F. Sturtevant | Ribbon Peg Wood | |