| All Patents in class 409/56 |
Patents 1 -
15
of 28
      |
| Number | Date | Patentee | Title | Type |
| 23,484 | Apr. 05, 1859 | W. Obenchain | Machine for Making Wooden Patterns for Cog-Wheels, &c. | carving machines |
| 49,881 | Sep. 12, 1865 | C.R. James | Cutting Wooden Gearing | wood gear cutters |
| 130,188 | Aug. 06, 1872 | R. Cairns | Improvement in Gear Cutting Machines | gear making machines |
| 241,907 | May 24, 1881 | H.C. Barnes | Lathe Attachment | gear making machines |
| 255,409 | Mar. 28, 1882 | A.H. Brainard | Gear-cutting machine | gear making machines |
| 282,059 | Jul. 31, 1883 | C.W. Crary | Gear Cutter | gear making machines |
| 363,000 | May 17, 1887 | E. Rivett | Watch-maker's lathe | watchmakers lathes |
| 389,905 | Sep. 25, 1888 | E. Rivett | Gear-shaping attachment for watch-makers' lathes | gear making machines |
| 414,803 | Nov. 12, 1889 | J.C. Fowler | Machine for Cutting Lobed Gears | gear making machines |
| 431,139 | Jul. 01, 1890 | W. Curtiss | Machine for dressing the teeth of gear-wheels | gear making machines |
| 461,952 | Oct. 27, 1891 | U. Eberhardt, H.E. Eberhardt, U. Eberhardt, Jr. | Gear-cutting or milling-machine | milling machines |
| 472,519 | Apr. 12, 1892 | A.H. Brainard | Gear Cutting Machine | gear making machines |
| 505,606 | Sep. 26, 1893 | E.H. Parks | Gear-cutting machine | gear making machines |
| 510,121 | Dec. 05, 1893 | U. Eberhardt, H.E. Eberhardt, F.L. Eberhardt | Gear-cutting machine | gear making machines |
| 512,550 | Jan. 09, 1894 | H.K. Kebabian | Wheel Cutting Fixture for Watch Makers Lathes | metal lathe accessories and attachments |
