| All Patents in class 74/424.94 |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
 | 201,372 | Mar. 19, 1878 | J.B. West | Improvement in screw-drivers |
| | 788,716 | May 02, 1905 | F.E. Walden, R.A. Hammond | Worm Gearing |
 | 825,151 | Jul. 03, 1906 | J.F. McLean | Unusual Quick Acting Vise |
 | 1,275,855 | Aug. 13, 1918 | J.L. Copping | Monkey Wrench |
 | 1,518,707 | Dec. 09, 1924 | F.H. Sleeper | Planer or shaper |
| | 1,912,525 | Jun. 06, 1933 | C.F. Hotchkiss, Jr. | Pipe Cleaning Tool |
 | 2,430,458 | Nov. 11, 1947 | L.F. Farrell | Automatic screw control |
| | 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 |
