| All Patents in class 279/23.1 |
Patents 1 -
10
of 10
      |
| Picture | Number | Date | Patentee | Title |
 | 342,350 | May 25, 1886 | F.H. Cook, C.E. Gould | Pencil-sharpener |
| | 445,696 | Feb. 03, 1891 | E.L. Bowers, W.L. Grout | Gripping Device for Lathes |
| | 445,697 | Feb. 03, 1891 | E.L. Bowers, W.L. Grout | Gripping Device for Lathes |
| | 499,289 | Jun. 13, 1893 | W. Frasier | Lathe Attachment |
 | 959,690 | May 31, 1910 | C.R. Anderson | Ratchet Wrench |
 | 1,433,163 | Oct. 24, 1922 | A.L. Walters | Speed Wrench Handle |
| | 2,000,216 | May 07, 1935 | G.A. Carlson | Grinding machine |
| | 2,037,681 | Apr. 14, 1936 | C.S. Gates | Tool Holder |
| | 2,105,330 | Jan. 11, 1938 | W.H. Pagenkopf | Tool Holder |
 | 2,641,478 | Jun. 09, 1953 | J.A. Sigg | Screwdriver |
