| All Patents in class 279/9.1 |
Patents 1 -
15
of 20
      |
| Number | Date | Patentee | Title | Type |
| 244,390 | Jul. 19, 1881 | J. Hilton | Detachable Saw-Handle | saw handles |
| 260,314 | Jun. 27, 1882 | G.V. Sheffield, J.A. Parks | Drill Chuck | drill press chucks |
| 307,252 | Oct. 28, 1884 | A.H. Armstrong | Bit-holder | brace chucks |
| 523,555 | Jul. 24, 1894 | J. Swan | Screw-Driver | screwdriver handles |
| 583,910 | Jun. 08, 1897 | G.J. Knapp | Auger-Handle | auger handles |
| 871,005 | Nov. 12, 1907 | A. Tindel | Chuck mechanism | |
| 911,210 | Feb. 02, 1909 | C.M. Conradson | Grinding Machine | glass grinding machines |
| 1,059,132 | Apr. 15, 1913 | G.O. Leopold, T.J. Fegley | Bit storage handle for the North Bros. (e.g. 1530 & 1431) eggbeater drills. | drill accessories |
| 1,165,500 | Dec. 28, 1915 | G.L. Green | Tool Holder | tool handles |
| 1,289,375 | Dec. 31, 1918 | F.E. Bright | Grinding Machine | |
| 1,300,163 | Apr. 08, 1919 | W.F. Groene | Means for attaching tools to spindles | milling machines |
| 1,407,668 | Feb. 21, 1922 | A. McCallum | Interchangeable Tool Holder Ferrule | tool holders |
| 1,415,246 | May 09, 1922 | G.P. Kline | Metal Punching Machine | metal punching machines |
| 1,958,941 | May 15, 1934 | K.J. Chapman | Tool Holder for Nibbling Machines | tool holders |
| 2,025,308 | Dec. 24, 1935 | J.M. Redinger | Rotary Cutter | milling machine cutters |
