| All Patents in class 72/139 |
Patents 1 -
6
of 6
      |
| Number | Title | Classification(s) |
| 16,793 | Machine for Coiling Steel Springs | 72/139, 72/144 |
| 70,770 | Improved machine for making wire dish-stands, &c. | 72/139 |
| 283,557 | Process of and Apparatus for Manufacturing Continuous Lengths of Coiled Wire | 242/362, 29/896.9, 72/134, 72/139, 72/142, 72/426 |
| 1,016,700 | Coil-forming machine | 72/139, 72/145, 72/219 |
| 1,372,816 | Bending Machine and Method of Bending | 72/139, 72/145, 72/149 |
| 2,713,376 | Metal-Forming Machine | 72/105, 72/139, 72/20.4, 72/298 |
