| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 411/386 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 4,704 | Aug. 20, 1846 | T.J. Sloan | Improvement in wood-screws | screws | |
| 447,775 | Mar. 10, 1891 | C.A. Higbee | Screw bolt and nut | firefighting tools | |