| All Patents in class 74/325 |
Patents 16 -
25
of 25
      |
| Number | Date | Patentee | Title | Type |
| 2,244,026 | Jun. 03, 1941 | L.L. Schauer | Radial drill | radial drill presses |
| 2,332,381 | Oct. 19, 1943 | W.G. Hoelscher | Lathe Spindle Speed Control | metal lathe mechanisms |
| 2,351,921 | Jun. 20, 1944 | E.P. Bullard, L.E. Alvey, F.H. Mussler | Machine Tool | |
| 2,426,299 | Aug. 26, 1947 | C.W. Dyer | Change Speed Mechanism for Lathes | engine lathes |
| 2,474,104 | Jun. 21, 1949 | H.C. Kemper, W.F. Groene | Drive Mechanism for Automatic Lathes | metalworking machine mechanisms |
| 2,561,753 | Jul. 24, 1951 | A.J. Fuller, W.W. Potter | Change-Speed Drive for Machine Tool Spindles | metalworking machine mechanisms |
| 2,621,566 | Dec. 16, 1952 | O.W. Barker, J.B. Armitage | Machine Tool Structure and Transmission Mechanism | milling machines |
| 2,800,032 | Jul. 23, 1957 | B.R. Granberg | Drive mechanism | |
| 3,109,319 | Nov. 05, 1963 | G.L. Pierce | Back gear control for lathe drive | metal lathes |
| 3,176,529 | Apr. 06, 1965 | J.P. Spridco, J.G. Osburn | Machine Tool Transmission and Control Mechanism | milling machines |
