| All Patents in class 72/172 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 235,878 | Dec. 28, 1880 | W.W. Jones | Machine for making rims for tops of metal vessels | sheet metal flanging machines |
| 347,299 | Aug. 10, 1886 | E.M. Jewett | Box-forming machine | box making machines |
| 522,487 | Jul. 03, 1894 | T. Schramm, J. Pleukharp | Machine for flaring and bending hoops | hoop making machines |
| 642,612 | Feb. 06, 1900 | F.J. Kleber, L.P. Kleber | Machine for Making Articles of Sheet Metal | stamping presses |
| 1,588,817 | Jun. 15, 1926 | H.C. Smith | Bending Machine | sheet metal bending machines |
| 2,450,041 | Sep. 28, 1948 | A.L. Groves | Sheet Metal Rolling Machine | sheet metal bending machines |
