| All Patents in class 279/29 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 87,715 | Mar. 09, 1869 | W.H. Sible | Improvement in bit-stock | brace chucks |
| 1,490,346 | Apr. 15, 1924 | A.B. Smith | Tool Holder | metalworking machine tool holders |
| 1,578,866 | Mar. 30, 1926 | D.B. Swain | Locking device and tool | spiral screwdrivers |
| 1,806,106 | May 19, 1931 | F.J. Lapointe | Vertical pull broaching machine | broaching machines |
| 1,939,503 | Dec. 12, 1933 | F.C. King | Tool Holder | metalworking machine tool holders |
| 2,138,253 | Nov. 29, 1938 | E.J. Lynch | Tool Holder | metalworking machine tool holders |
