| All Patents in class 72/139 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 16,793 | Mar. 10, 1857 | P.G. Gardiner | Machine for Coiling Steel Springs | spring making machines |
| 70,770 | Nov. 12, 1867 | E.P. Woods, D. Sherwood | Improved machine for making wire dish-stands, &c. | |
| 283,557 | Aug. 21, 1883 | F.P. Barney | Process of and Apparatus for Manufacturing Continuous Lengths of Coiled Wire | wire drawing machines |
| 1,016,700 | Feb. 06, 1912 | A.L. McHugh | Coil-forming machine | electric motor making |
| 1,372,816 | Mar. 29, 1921 | J.H. Holmgreen | Bending Machine and Method of Bending | sheet metal bending machines |
| 2,713,376 | Jul. 19, 1955 | C.J. Bath | Metal-Forming Machine | metal bending machines |
