| All Patents in class 279/155 |
Patents 16 -
27
of 27
      |
| Number | Date | Patentee | Title | Type |
| 1,788,268 | Jan. 06, 1931 | J.E. Anderson | Ejector for taper-shank cutting tools | drill presses |
| 1,976,109 | Oct. 09, 1934 | W.D. Archea | Grinding Machine | grinding machines |
| 2,326,541 | Aug. 10, 1943 | R.L. Kuehn | Machine Tool | metalworking machines |
| 2,397,025 | Mar. 19, 1946 | J. MacBlane | Automatic Chuck | drill press chucks |
| 2,448,393 | Aug. 31, 1948 | W.S. Reynolds | Trimming Machine | metalworking machines |
| 2,485,799 | Oct. 25, 1949 | R.M. Woytych | Toolhead | metalworking machine tool holders |
| 2,489,023 | Nov. 22, 1949 | R.M. Gamble | Lathe | automatic lathes |
| 2,771,297 | Nov. 20, 1956 | W. Nipken | Adjustable stop for a collet or the like | work holding |
| 2,893,274 | Jul. 07, 1959 | F.H. Mueller | Tool Holder | drilling and boring tool holders |
| 2,972,486 | Feb. 21, 1961 | B.R. Better | Indirect Chucking | grinding fixtures |
| 3,753,383 | Aug. 21, 1973 | F.L. Schmidt | Power Operated Drawbolt | metalworking machine mechanisms |
| 4,398,326 | Aug. 16, 1983 | J.R. Joerger | Collet Unclamping Mechanism | metalworking machine mechanisms |
