| All Patents in class 279/39 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 20,711 | Jun. 29, 1858 | T.R. Hopkins | Ring Clamp for Engravers | |
| 22,635 | Jan. 18, 1859 | W.W. Draper | File-handle | tool handles |
| RE4,333 | Apr. 11, 1871 | W.W. Draper | Improvement in tool-holders | tool handles |
| 131,829 | Oct. 01, 1872 | H.L. Pratt | Improvement in bit-stocks | brace chucks |
| 149,306 | Apr. 07, 1874 | H.C. Hart | Bit-stock | brace chucks |
| 150,046 | Apr. 21, 1874 | G.W. Hutchins | Improvement in Shoemakers' Awl-Hafts | cobbler |
| RE8,525 | Dec. 17, 1878 | H.L. Pratt | Improvement in bit-stocks | brace chucks |
| 310,960 | Jan. 20, 1885 | J.L. Phillips | Wrench | wedge adjust wrenches |
| 323,989 | Aug. 11, 1885 | W.S. Washburn | Bit-stock | |
| 331,053 | Nov. 24, 1885 | N.H. Griffith | Wrench | |
| 434,026 | Aug. 12, 1890 | G.H. Hood, W.H. Seiders | Tool Chuck | brace chucks |
| 769,725 | Sep. 13, 1904 | H.E. Britton | Adjustable Knife-Blade Holder | knives and cutters |
| 961,203 | Jun. 14, 1910 | H. Batchelor | Tool Holder | brace chucks |
| 1,405,625 | Feb. 07, 1922 | J. Perkins, Jr. | Bit Holder Extension | drill bit extensions |
