| All Patents in class 279/904 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 1,030,592 | Jun. 25, 1912 | J.A. Leland | Telescopic Extension-Rod | drill bit extensions |
| 1,618,998 | Mar. 01, 1927 | J.M. Redinger | Milling Machine Collet and End Mill | milling machine tools |
| 1,794,361 | Mar. 03, 1931 | L.F. Nenninger, B.P. Graves, E.J. Kearney, J.B. Armitage | Milling-Machine Spindle and Tool | milling machine tools |
| 2,485,799 | Oct. 25, 1949 | R.M. Woytych | Toolhead | metalworking machine tool holders |
| 2,857,166 | Oct. 21, 1958 | A.D. Tognetti, H. Conn | Quick Change Tool Holder | metalworking machine tool holders |
| 2,931,659 | Apr. 05, 1960 | R.E. Novkov | Quick Change Tool Holder | milling machine tools |
| 4,786,221 | Nov. 22, 1988 | K.L. March | Quick release chuck mechanism and method for achieving interchange ability of tool inserts therein | tapping machines |
| 4,795,291 | Jan. 03, 1989 | K.L. March | Method for achieving interchangeability of tool inserts | tapping machines |
