| All Patents in class 409/169 |
Patents 31 -
36
of 36
      |
| Number | Date | Patentee | Title | Type |
| 2,070,807 | Feb. 16, 1937 | W.D. Archea, E.G. Roehm | Backlash Eliminator | milling machines |
| 2,308,647 | Jan. 19, 1943 | F.W. Curtis | Hydraulic Machine Tool | milling machines |
| 2,432,716 | Dec. 16, 1947 | A.F. Bennett | Driving and Control Mechanism | machine tool controls |
| 2,764,067 | Sep. 25, 1956 | F. Zankl, J.B. Armitage | Machine Tool Transmission Mechanism | milling machines |
| 3,119,307 | Jan. 28, 1964 | H.B. Opferkuch | Automatic Backlash Eliminator | milling machines |
| 3,176,529 | Apr. 06, 1965 | J.P. Spridco, J.G. Osburn | Machine Tool Transmission and Control Mechanism | milling machines |
