| All Patents in class 403/320 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | 83,463 | Oct. 27, 1868 | T.S. Coffin | Improved Hammer |
 | 317,637 | May 12, 1885 | P.G. Gesford, Jr. | Device For Adjusting and Removing Nuts |
 | 1,252,082 | Jan. 01, 1918 | A. Bock | Cutting Tool |
| | 1,253,149 | Jan. 08, 1918 | W. Childers | Drilling Tool Joint |
| | 1,677,199 | Jul. 17, 1928 | J.T. Nelson | Handle lock for pneumatic tools |
| | 1,980,336 | Nov. 13, 1934 | F.O. Hoagland | Chuck Retaining Means |
| | 3,071,398 | Jan. 01, 1963 | J.A. Henning | Locking Ring |
| | 3,572,197 | Mar. 23, 1971 | R.M. Ortlieb | Adjustable Toolholder |
