| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Shadrick F. Perkins | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 461,719 | Oct. 20, 1891 | P. Stovall | Saw-mill feed | sawmill feed works | |
| 488,618 | Dec. 27, 1892 | P. Stovall | Variable friction-feed in sawmills | sawmill feed works | |