| All Patents in class 279/76 |
Patents 46 -
60
of 64
      |
| Number | Date | Patentee | Title | Type |
| 1,797,986 | Mar. 24, 1931 | F.C. King | Tool Holder | tool holders |
| 1,814,655 | Jul. 14, 1931 | R.W. Andreasson | Tool Holder | drilling and boring tool holders |
| 1,860,998 | May 31, 1932 | J. Drazick | Tool Holder | tool holders |
| 1,862,623 | Jun. 14, 1932 | F.T. Harrington | Tool Holder | sheet metal stamping dies |
| 1,880,521 | Oct. 04, 1932 | A.L. Stowell | Bit or drill holder | |
| 1,886,177 | Nov. 01, 1932 | E. Gairing | Boring Tool and Holder | drilling and boring tool holders |
| 1,971,289 | Aug. 21, 1934 | J.H. Abramson, E.C. Swanson | Ratcheting Screwdriver | spiral screwdrivers |
| 2,089,166 | Aug. 03, 1937 | H.O. Reichardt | Tool Holder | tool holders |
| 2,136,190 | Nov. 08, 1938 | L. Gulfelt | Tool Holder | metalworking machine tool holders |
| 2,138,253 | Nov. 29, 1938 | E.J. Lynch | Tool Holder | metalworking machine tool holders |
| 2,372,028 | Mar. 20, 1945 | V.E. Smith | Counterboring Tool With Pilot and Holder | drilling and boring tool holders |
| 2,442,088 | May 25, 1948 | C. Kreutzer | Dressing Tool Holder | grinder dressers |
| 2,485,799 | Oct. 25, 1949 | R.M. Woytych | Toolhead | metalworking machine tool holders |
| 2,607,603 | Aug. 19, 1952 | G.W. Breuer, M. Drewes, Jr., E. Lambeau | Coupling or brush backs | |
| 2,684,249 | Jul. 20, 1954 | R.M. Woytych | Toolhead and Taper Shank Adapter | metalworking machine tool holders |
