| All Patents in class 279/77 |
Patents 46 -
52
of 52
      |
| Number | Date | Patentee | Title | Type |
| 1,910,296 | May 23, 1933 | F.C. King | Punch Retainer Mechanism | punch presses |
| 1,939,503 | Dec. 12, 1933 | F.C. King | Tool Holder | metalworking machine tool holders |
| 2,220,248 | Nov. 05, 1940 | J.G. Kolb | Tool Holder | tool holders |
| 2,433,127 | Dec. 23, 1947 | R.B. Kinzbach | Machine Tool Holder | metalworking machine tool holders |
| 2,781,199 | Feb. 12, 1957 | A.G. Veldhuizen | Device for Clamping a Tool or a Disc on the Holder of a Machine Tool | metalworking machine tool holders |
| 2,816,770 | Dec. 17, 1957 | A.N. Sweeny, C.B. De Vlieg | Tool Holder and Adapter | metalworking machine tool holders |
| 3,056,609 | Oct. 02, 1962 | J.R. Buck | Drill Chuck | drill press chucks |
