| All Patents of Type: sharpening tool holders |
Patents 1 -
15
of 29
      |
| Number | Date | Patentee | Title | Type |
| 782,278 | Feb. 14, 1905 | M.B. Russ | Skate or Tool Holder for Grinding Machines | sharpening tool holders |
| 906,263 | Dec. 08, 1908 | M.W. Murray | Tool Holder | sharpening tool holders |
| 958,945 | May 24, 1910 | J.L. Stoffer | Tool Holder | sharpening tool holders |
| 993,335 | May 30, 1911 | A. Bergstrom | Tool Holder | sharpening tool holders |
| 1,047,424 | Dec. 17, 1912 | T. Lumsden | Tool Holder for Tool and Like Grinding Machines | sharpening tool holders |
| 1,048,173 | Dec. 24, 1912 | D. Kaaumoana | Adjustable Tool Holder | sharpening tool holders |
| 1,050,781 | Jan. 21, 1913 | J.N. Anderson | Tool Holder | sharpening tool holders |
| 1,072,629 | Sep. 09, 1913 | T. Lumsden | Tool Holder for Grinding Machines | sharpening tool holders |
| 1,113,650 | Oct. 13, 1914 | W.A. Kelsey | Tool Holder | sharpening tool holders |
| 1,133,651 | Mar. 30, 1915 | T. Lumsden | Tool Holder for Tool Grinding Machines | sharpening tool holders |
| 1,163,016 | Dec. 07, 1915 | K.C. Knudson | Tool Holder for Grindstones | sharpening tool holders |
| 1,184,340 | May 23, 1916 | F.A. Gettings | Tool Holder | sharpening tool holders |
| 1,185,219 | May 30, 1916 | T. Lumsden | Tool Holder for Grinding Machines | sharpening tool holders |
| 1,221,556 | Apr. 03, 1917 | L.P. McEachron | Tool Holder | sharpening tool holders |
| 1,227,398 | May 22, 1917 | A.P. De Villa-Amil | Tool Holder | sharpening tool holders |
