| All Patents in class 409/61 |
Patents 1 -
15
of 24
      |
| Number | Date | Patentee | Title | Type |
| 5,614 | Jun. 06, 1848 | J.P. Gaume | Machinery for cutting Cog-Wheels, &c. | gear making machines |
| 23,484 | Apr. 05, 1859 | W. Obenchain | Machine for Making Wooden Patterns for Cog-Wheels, &c. | carving machines |
| 40,550 | Nov. 10, 1863 | A.T. Boon | Gear Cutting | gear making machines |
| 67,219 | Jul. 30, 1867 | T.B. Russell | Improvements in Gear-Cutting Wheels | gear making machines |
| 130,188 | Aug. 06, 1872 | R. Cairns | Improvement in Gear Cutting Machines | gear making machines |
| 135,218 | Jan. 28, 1873 | J.J. Greenough | Gear Cutting Machines | gear making machines |
| 144,214 | Nov. 04, 1873 | T.O. Mills | Gear Cutting Attachments to Lathes | metal lathe accessories and attachments |
| 310,247 | Jan. 06, 1885 | Z.B. Coes, A.H. Brainard | Automatic gear-cutting machine | gear making machines |
| 326,889 | Sep. 22, 1885 | D. Slate | Gear-Cutter | gear making machines |
| 464,233 | Dec. 01, 1891 | J. Sherman | Gear-cutting machine | gear making machines |
| 498,497 | May 30, 1893 | F. Wilkie | Index Dividing Attachment for Lathes | metal lathe accessories and attachments |
| 532,127 | Jan. 08, 1895 | L.E. Whiton | Gear-cutting machine | gear making machines |
| 547,944 | Oct. 15, 1895 | G.N. Van Derhoef | Gear cutting machine | gear making machines |
| 577,707 | Feb. 23, 1897 | J. Barker | Gear-cutting machine | gear making machines |
| 667,512 | Feb. 05, 1901 | C.H. Field | Gear Cutting Engine | gear making machines |
