| All Patents in class 409/2 |
Patents 1 -
10
of 24
      |
| Picture | Number | Date | Patentee | Title |
| | 6,161 | Mar. 10, 1849 | G.H. Corliss | Machine for Cutting the Cogs of Beveled Cog Wheels |
| | 25,759 | Oct. 11, 1859 | H. Pfarrer | Gear Cutting Engine |
 | 26,151 | Nov. 22, 1859 | M. Allan | Metal Planing Machine |
 | 51,458 | Dec. 12, 1865 | J. Jackson | Improvement in machines for cutting wood gears |
 | 175,859 | Apr. 11, 1876 | W. Gleason | Machine for Cutting the Teeth of Metal Gears |
| | 183,298 | Oct. 17, 1876 | A. Hanauer | Gear-Planer |
 | RE9,469 | Nov. 16, 1880 | W. Gleason | Machine for Cutting Teeth of Wooden Gears |
| | 367,047 | Jul. 26, 1887 | W.C. Jones | Gear Cutter |
| | 414,803 | Nov. 12, 1889 | J.C. Fowler | Machine for Cutting Lobed Gears |
| | 509,467 | Nov. 28, 1893 | J.E. Gleason | Tool Controlling Mechanism for Gear Planers |
