| All Patents in class 74/424.94 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 201,372 | Mar. 19, 1878 | J.B. West | Improvement in screw-drivers | spiral screwdrivers |
| 788,716 | May 02, 1905 | F.E. Walden, R.A. Hammond | Worm Gearing | vise mechanisms |
| 825,151 | Jul. 03, 1906 | J.F. McLean | Unusual Quick Acting Vise | vises |
| 1,275,855 | Aug. 13, 1918 | J.L. Copping | Monkey Wrench | screw adjust wrenches |
| 1,518,707 | Dec. 09, 1924 | F.H. Sleeper | Planer or shaper | metal planers |
| 1,912,525 | Jun. 06, 1933 | C.F. Hotchkiss, Jr. | Pipe Cleaning Tool | pipe and orifice cleaners |
| 2,430,458 | Nov. 11, 1947 | L.F. Farrell | Automatic screw control | bench vises |
| 2,616,302 | Nov. 04, 1952 | G.A. Wahlmark | Antifriction transmission | |
| 3,121,340 | Feb. 18, 1964 | M.L. Anthony | Resilient Nut for Averaging Out Lead Screw Error | metalworking machine mechanisms |
