| All Patents in class 72/248 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 434,960 | Aug. 26, 1890 | E.E. Stow | Tinsmith's Machine | sheet metal forming rolls |
| 627,558 | Jun. 27, 1899 | F.L. White | Drawing Die Mechanism | dies for punch presses |
| 661,017 | Oct. 30, 1900 | C. Kuhlewind | Rolling Mill | rolling mills |
| 1,162,536 | Nov. 30, 1915 | B.F. Winterhoff | Sheet-metal-tube-planishing machine | roller seaming machines |
| 1,774,155 | Aug. 26, 1930 | L.S. Platou | Sheet Metal Working Machine | sheet metal |
| 1,822,697 | Sep. 08, 1931 | P.R. Hahnemann | Sheet-metal working machine | beading machines |
