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