| All Patents in class 74/127 |
Patents 91 -
105
of 140
      |
| Number | Date | Patentee | Title | Type |
| 979,132 | Dec. 20, 1910 | F.E. Davis | Spiral tool-driver | spiral screwdrivers |
| 979,939 | Dec. 27, 1910 | G.O. Leopold, T.J. Fegley | Spiral tool-driver | hand drills |
| 1,023,023 | Apr. 09, 1912 | G.O. Leopold | Gearing | hand drills |
| 1,024,960 | Apr. 30, 1912 | M. Wolin | Spiral tool-driver | spiral screwdrivers |
| 1,033,615 | Jul. 23, 1912 | W.A. Peck | Push-drill | hand drills |
| 1,054,142 | Feb. 25, 1913 | G. Plein | Spiral tool-driver | spiral screwdrivers |
| 1,061,773 | May 13, 1913 | J. Nahlinger | Driving mechanism for spiral-tool drivers | spiral screwdrivers |
| 1,107,701 | Aug. 18, 1914 | G. Plein | Spiral tool-driver | spiral screwdrivers |
| 1,118,250 | Nov. 24, 1914 | C. Wilder | Spiral tool-driver | spiral screwdrivers |
| 1,131,789 | Mar. 16, 1915 | W.H. Pearce | Valve-grinding tool | |
| 1,183,426 | May 16, 1916 | F. Booth | Tool-handle gearing | spiral screwdrivers |
| 1,188,162 | Jun. 20, 1916 | C.R. Duggan | Spiral tool-driver | hand drills |
| 1,259,926 | Mar. 19, 1918 | I.E. Stump | Mechanical movement | spiral screwdrivers |
| 1,290,489 | Jan. 07, 1919 | W.J. Bauer | Spiral tool-driver | spiral screwdrivers |
| 1,304,714 | May 27, 1919 | L. Starrett | Tool-driver | spiral screwdrivers |
