| All Patents in class 409/22 |
Patents 1 -
10
of 10
      |
| Picture | Number | Date | Patentee | Title |
| | 120,023 | Oct. 17, 1871 | H. Belfield | Improvement in Machines for Cutting the Teeth of Wheels |
| | 305,234 | Sep. 16, 1884 | F.H. Richards | Gear Cutting Machine |
 | 510,122 | Dec. 05, 1893 | U. Eberhardt, H.E. Eberhardt, F.L. Eberhardt | Gear-cutting and hobbing machine |
 | 537,214 | Apr. 09, 1895 | V.W. Mason, Jr. | Machine for hobbing worm-gears |
 | 606,700 | Jul. 05, 1898 | W. Beastow | Machine for cutting worm gears |
| | 607,627 | Jul. 19, 1898 | F. Reece, administrator, M. Reece, administrator, J. Reece, Estate of (deceased) | Machine for Cutting Teeth on Toothed Gears |
 | 684,634 | Oct. 15, 1901 | J.J. Grant | Worm-wheel-cutting machine |
| | 806,075 | Nov. 28, 1905 | T. Fawcus | Spiral Gear Cutting Machine |
| | 894,508 | Jul. 28, 1908 | W.F. Groene, R.K. Blond | Milling-machine |
| | 2,930,292 | Mar. 29, 1960 | W.C. Gleisner, Jr. | Machine Tool Elevating Mechanism |
