| All Patents in class 74/816 |
Patents 1 -
15
of 33
      |
| Number | Date | Patentee | Title | Type |
| 110,406 | Dec. 20, 1870 | C. Van Haagen | Improvement in gear-cutting machines | gear making machines |
| 136,450 | Mar. 04, 1873 | I.F. Murch | Multiple Bit Device | drill bits |
| 144,214 | Nov. 04, 1873 | T.O. Mills | Gear Cutting Attachments to Lathes | metal lathe accessories and attachments |
| 156,705 | Nov. 10, 1874 | W.P. Hopkins | Gear Cutting Attachments for Lathes | gear making machines |
| 174,596 | Mar. 07, 1876 | C. Walker | Gear Cutting Attachment for Metal Lathe | metal lathe accessories and attachments |
| 208,491 | Oct. 01, 1878 | J.W. Post | Gear Cutting Attachment for Lathes | metal lathe accessories and attachments |
| 276,346 | Apr. 24, 1883 | W. Scully, J. Brooks | Gear Cutter | gear making machines |
| 343,980 | Jun. 22, 1886 | A.H. Brainard | Dividing Engine | indexers and dividers |
| 359,377 | Mar. 15, 1887 | G.F. Ballou | Gear Cutting Device for Lathes | metal lathe accessories and attachments |
| 431,809 | Jul. 08, 1890 | J. Hartness | Attachment for Metal Screw Machines | metal lathe accessories and attachments |
| 432,621 | Jul. 22, 1890 | F. Holz | Milling Machine | indexers and dividers |
| 517,168 | Mar. 27, 1894 | F.H. Richards | Turret Mechanism | turret lathes |
| 539,792 | May 28, 1895 | F.H. Bultman | Automatic gear-cutting and milling machine | gear making machines |
| 571,402 | Nov. 17, 1896 | F. Schneider | Lathe | turret lathes |
| 574,162 | Dec. 29, 1896 | G.G. Prentice | Multiple Screw Machine | screw machines |
