| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for W. R. Perkins | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 827,846 | Aug. 07, 1906 | J.H. Francis, J.E. Bowser | Ratchet Wrench | ratchet wrenches | |
| 931,223 | Aug. 17, 1909 | J.P. Gates, B.D. Stevens, H.B. Ross | Feeding mechanism for saw | woodworking machine stockfeeding mechanisms | |