| All Patents in class 279/60 |
Patents 16 -
27
of 27
      |
| Number | Date | Patentee | Title | Type |
| 1,764,291 | Jun. 17, 1930 | G.W. Emrick | Drill chuck | drill press chucks |
| 1,775,993 | Sep. 16, 1930 | G.W. Emrick | Chuck device | tapping machines |
| 1,775,994 | Sep. 16, 1930 | G.W. Emrick | Drill chuck | drill press chucks |
| 1,776,675 | Sep. 23, 1930 | T.D. Bascom | Chuck | drill press chucks |
| 1,806,106 | May 19, 1931 | F.J. Lapointe | Vertical pull broaching machine | broaching machines |
| 2,025,885 | Dec. 31, 1935 | F.S. Haas, L.F. Nenninger | Grinding Machine | grinding machines |
| 2,055,916 | Sep. 29, 1936 | H.E. Tautz | Chuck | drilling and boring |
| 2,170,769 | Aug. 22, 1939 | G.A. Highberg, H.E. Sloan | Chuck | metal lathe chucks |
| 2,253,345 | Aug. 19, 1941 | C.A. Palmgren | Chuck | drill chucks |
| 2,389,536 | Nov. 20, 1945 | C.A. Palmgren | Chuck | drill chucks |
| 2,447,859 | Aug. 24, 1948 | J.M. Ingalls | Stock Pusher | automatic lathes |
| 3,814,449 | Jun. 04, 1974 | J.R. Buck | Hydraulic ring chuck | metal lathe chucks |
