| All Patents in class 409/56 |
Patents 16 -
28
of 28
      |
| Number | Date | Patentee | Title | Type |
| 515,906 | Mar. 06, 1894 | H.E. Eberhardt, U. Eberhardt | Multiplex gear-cutter | gear making machines |
| 539,792 | May 28, 1895 | F.H. Bultman | Automatic gear-cutting and milling machine | gear making machines |
| 547,944 | Oct. 15, 1895 | G.N. Van Derhoef | Gear cutting machine | gear making machines |
| 553,037 | Jan. 14, 1896 | A. Mertes | Gear-cutting machine | gear making machines |
| 577,707 | Feb. 23, 1897 | J. Barker | Gear-cutting machine | gear making machines |
| 587,537 | Aug. 03, 1897 | C.E. Van Norman | Combined lathe and milling-machine | metal lathes |
| 607,629 | Jul. 19, 1898 | F.A. Shea, Administrator, M. Reece, administrator, J. Reece, Estate of (deceased) | Machine for Cutting Gear Teeth | gear making machines |
| 607,982 | Jul. 26, 1898 | W.G. Burnham | Gear-cutting machine | gear making machines |
| 617,723 | Jan. 17, 1899 | U. Eberhardt, H.E. Eberhardt, F.L. Eberhardt | Gear-cutter clamp for wheel-blanks | gear making machines |
| 667,512 | Feb. 05, 1901 | C.H. Field | Gear Cutting Engine | gear making machines |
| 844,729 | Feb. 19, 1907 | W.A. Jordan | Gear-cutting machine | gear making machines |
| 867,189 | Sep. 24, 1907 | H.M. Darling | Gear-cutting mechanism | gear making machines |
| 921,593 | May 11, 1909 | A.T. Collier | Apparatus for Cutting Globoig Worms | gear making machines |
