| All Patents in class 475/325 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 797,001 | Aug. 15, 1905 | F.H. Heitger | Speed-Changing Gear | industrial machine speed and direction changing mechanisms |
| 800,268 | Sep. 26, 1905 | C.M. Conradson | Speed Changing Mechanism | metalworking variable speed mechanisms |
| 812,533 | Feb. 13, 1906 | H.A. Tuttle | Reversing-gear | industrial machine gearing |
| 1,178,284 | Apr. 04, 1916 | A. Winton | Transmission Mechanism | industrial machine speed and direction changing mechanisms |
| 1,680,141 | Aug. 07, 1928 | W.T. Emmes | Reversing and braking mechanism for machine tools | metalworking machine mechanisms |
| 2,856,797 | Oct. 21, 1958 | C.F. Dassance | Variable speed geared pulley | industrial machine gearing |
