| All Patents in class 72/175 |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 4,819X | Jul. 14, 1827 | W.J. (Janes) | Machine for bending tires for wheels | blacksmith |
| 275,029 | Apr. 03, 1883 | J.M. Evarts | Machine for Bending Pipe | pipe bending machines |
| 357,228 | Feb. 08, 1887 | O. Pocock | Machine for Bending Sheet Metal | sheet metal forming rolls |
| 406,984 | Jul. 16, 1889 | I.L. Anwerter | Tire Bender | tire bending tools |
| 408,685 | Aug. 13, 1889 | C.A. Bertsch | Bending Roll | metal bending machines |
| 468,659 | Feb. 09, 1892 | E. Heyde | Bending-roll | metal bending machines |
| 510,764 | Dec. 12, 1893 | C.A. Bertsch | Metal Bending Machine | metal bending machines |
| 543,815 | Jul. 30, 1895 | W. Lewis, W. Sellers | Bending Rolls | |
| 609,807 | Aug. 30, 1898 | E. Holmes, B. Holmes | Machine for Flaring and Bending Metal Hoops | barrel making machines |
| 778,472 | Dec. 27, 1904 | O.S. Beyer | Ring-making machine | metalworking machines |
| 877,038 | Jan. 21, 1908 | C.A. Bertsch | Bending Rolls | metal bending machines |
| 1,144,459 | Jun. 29, 1915 | F.V. Burman | Angle-iron-bending machine | metal bending machines |
| 1,406,004 | Feb. 07, 1922 | P.R. Hahnemann | Metal Working Machine | thread rolling machines |
| 1,735,243 | Nov. 12, 1929 | P.R. Hahnemann | Slip Roll Forming Machine | sheet metal forming rolls |
| 1,742,654 | Jan. 07, 1930 | P.R. Hahnemann | Slip Rol Forming Machine | sheet metal forming rolls |
