| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 411/407 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 161,390 | Mar. 30, 1875 | A. Cummings | Improvement in wood-screws | ||
| 748,241 | Dec. 29, 1903 | E.L. Walter | Screw and Driver Therefor | screwdriver blades | |