| All Patents in class 83/389 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 143,473 | Oct. 07, 1873 | M. Stephens | Improvement in machines for punching sheet metal | metal punching machines |
| 490,777 | Jan. 31, 1893 | S. Trethewey | Shearing Machine | metal shearing machines |
| 702,360 | Jun. 10, 1902 | W.M. Dwight | Automatic-cut-off sawing-machine | circular crosscut saws |
| 921,068 | May 11, 1909 | L.H. Bertsch, H. Schelhammer, C.A. Bertsch | Punching or Shearing Machine | metal punching machines |
| 2,200,894 | May 14, 1940 | C. Rasmussen | Saw machine | power hacksaws |
