| All Patents in class 279/50 |
Patents 16 -
20
of 20
      |
| Number | Date | Patentee | Title | Type |
| 3,042,418 | Jul. 03, 1962 | G. Sorsa, R.E. Curran | Chuck mechanism for collets | metal lathe chucks |
| 3,168,322 | Feb. 02, 1965 | H.R. Dziedzic | Chucking Device for Machine Tool Spindle and Tool Holder for E Therewith | metalworking machine mechanisms |
| 3,926,447 | Dec. 16, 1975 | J.H. Cox, Jr. | Collet-Type Work Holder | metalworking machine mechanisms |
| 4,690,415 | Sep. 01, 1987 | W.B. Holdridge | Hydraulic Nosepiece Assembly for a Collet Closer, and Method | collet closers |
| 5,337,521 | Aug. 16, 1994 | D. Heyl, D.M. Terpstra | Valve grinder | valve and seat maintenance |
