| All Patents in class 279/4.12 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 1,146,193 | Jul. 13, 1915 | W.L. Miller | Fluid-pressure chuck-actuating device | metal lathe accessories and attachments |
| 1,815,562 | Jul. 21, 1931 | L.E. Godfriaux | Hydraulic Chuck | metal lathe chucks |
| 2,030,142 | Feb. 11, 1936 | G.W. Luning, W.F. Groene | Chuck | metal lathe chucks |
| 2,250,632 | Jul. 29, 1941 | W.L. Groene | Hydraulic chucking mechanism | crankshaft lathes |
| 2,423,244 | Jul. 01, 1947 | J.E. Lovely | Power-operated Chuck | metal lathe chucks |
| 2,528,442 | Oct. 31, 1950 | L.A. Leifer | Power Chuck | metal lathe chucks |
| 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 | metal lathe chucks |
| 2,703,242 | Mar. 01, 1955 | L.B. Swanson, H.E. Sloan | Combination Work and Compensating Jaw Chuck | metal lathe chucks |
| 2,843,389 | Jul. 15, 1958 | L.B. Swanson, H.E. Sloan | Chuck | metal lathe chucks |
| 2,851,831 | Sep. 16, 1958 | F.P. Healy | Hydraulic work-supporting clamp assembly | engine block and head maintenance |
| 3,188,890 | Jun. 15, 1965 | R.F. Fischer, G.W. Ross, J.R. Finley, A.H. Fotsch | Car Wheel Borer with Transfer Mechanism | metalworking machine mechanisms |
| 3,814,449 | Jun. 04, 1974 | J.R. Buck | Hydraulic ring chuck | metal lathe chucks |
