| Patents for Roderick P. Curtis |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 270,407 | Jan. 09, 1883 | W.D. Forbes | Screw-threading machine |
 | 270,408 | Jan. 09, 1883 | W.D. Forbes | Screw-threading machine |
 | 270,409 | Jan. 09, 1883 | W.D. Forbes | Screw-threading machine |
| | 437,291 | Sep. 30, 1890 | R.P. Curtis | Machine for Simultaneously Threading a Plurality of Bolts |
| | 443,500 | Dec. 30, 1890 | L.B. Curtis, R.P. Curtis | Pipe Threading Machine |
| | 443,501 | Dec. 30, 1890 | R.P. Curtis | Pipe Threading Machine |
| | 443,502 | Dec. 30, 1890 | R.P. Curtis | Pipe Threading Machine |
