| All Patents in class 474/78 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 629,899 | Aug. 01, 1899 | J.H. Flynn | Guide-pulley | drill presses |
| 1,909,522 | May 16, 1933 | J.G. Collins | Lathe | |
| 2,072,646 | Mar. 02, 1937 | W.F. Ocenasek | Drill press spindle drive and mounting | drill presses |
| 2,258,270 | Oct. 07, 1941 | J. Velk | Driving mechanism | industrial machine pulleys and belt drive mechanisms |
| 2,346,028 | Apr. 04, 1944 | L.B. Huthsing, C.M. Gregory | Variable speed belt drive | drill presses |
| 2,457,458 | Dec. 28, 1948 | C.A. Girod | Speed device | drill presses |
| 2,473,963 | Jun. 21, 1949 | R.E. McKelvey | Speed selection unit | drill presses |
