| Patents for Curtis & Curtis Co. |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 253,996 | Feb. 21, 1882 | W.D. Forbes | Screw-cutting die | taps and dies |
| 270,407 | Jan. 09, 1883 | W.D. Forbes | Screw-threading machine | pipe threading machines |
| 270,408 | Jan. 09, 1883 | W.D. Forbes | Screw-threading machine | pipe threading machines |
| 270,409 | Jan. 09, 1883 | W.D. Forbes | Screw-threading machine | pipe threading machines |
| CA-16,422 | Mar. 01, 1883 | W.D. Forbes | Die-stock | tap wrenches and die stocks |
| 356,871 | Feb. 01, 1887 | W.D. Forbes | Pipe and rod vise | pipe and chain vises |
| 363,626 | May 24, 1887 | W.D. Forbes | Die-stock | tap wrenches and die stocks |
