| All Patents in class 409/57 |
Patents 1 -
10
of 20
      |
| Picture | Number | Date | Patentee | Title |
| | 23,484 | Apr. 05, 1859 | W. Obenchain | Machine for Making Wooden Patterns for Cog-Wheels, &c. |
| | 153,370 | Jul. 21, 1874 | J.A. Peer | Gear Cutting Machines |
| | 320,179 | Jun. 16, 1885 | H. Schulze-Berge | Gear Cutter |
 | 326,889 | Sep. 22, 1885 | D. Slate | Gear-Cutter |
 | 532,127 | Jan. 08, 1895 | L.E. Whiton | Gear-cutting machine |
 | 605,249 | Jun. 07, 1898 | J.E. Gleason | Machine for forming gear-teeth |
| | 607,626 | Jul. 19, 1898 | M. Reece, administrator, F.A. Shea, Administrator, J. Reece, Estate of (deceased) | Machine for Cutting Worms |
 | 621,519 | Mar. 21, 1899 | W.G. Burnham | Gear-cutting machine |
 | 624,676 | May 09, 1899 | E.H. Parks | Gear-cutting machine |
| | 642,667 | Feb. 06, 1900 | O.J. Beale | Mechanical Movement |
