| All Patents in class 279/4.12 |
Patents 1 -
10
of 14
      |
| Picture | Number | Date | Patentee | Title |
 | 1,146,193 | Jul. 13, 1915 | W.L. Miller | Fluid-pressure chuck-actuating device |
| | 1,815,562 | Jul. 21, 1931 | L.E. Godfriaux | Hydraulic Chuck |
| | 2,030,142 | Feb. 11, 1936 | G.W. Luning, W.F. Groene | Chuck |
 | 2,250,632 | Jul. 29, 1941 | W.L. Groene | Hydraulic chucking mechanism |
| | 2,423,244 | Jul. 01, 1947 | J.E. Lovely | Power-operated Chuck |
| | 2,528,442 | Oct. 31, 1950 | L.A. Leifer | Power Chuck |
| | 2,540,186 | Feb. 06, 1951 | E.P. Bullard, G.R. Appelberg, E.G. Bjorklund, E.N. Cowell, C.M. Grinage, E.H. Johnson, P.H. Lange, F.H. Mussler | Machine Tool |
| | 2,543,857 | Mar. 06, 1951 | L.A. Leifer | Collet Chuck |
| | 2,703,242 | Mar. 01, 1955 | H.E. Sloan, L.B. Swanson | Combination Work and Compensating Jaw Chuck |
| | 2,843,389 | Jul. 15, 1958 | L.B. Swanson, H.E. Sloan | Chuck |
