| All Patents in class 451/383 |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 66,853 | Jul. 16, 1867 | A. Kipp, Jr. | Improvement in machines for grinding the runners for skates |
 | 193,437 | Jul. 24, 1877 | V.F. Prentice, E.J. Worcester | Improvement in machines for grinding mower and reaper knives |
| | 782,278 | Feb. 14, 1905 | M.B. Russ | Skate or Tool Holder for Grinding Machines |
 | 976,186 | Nov. 22, 1910 | E.J. Knudsen, H.C. Knudsen | Skate Jig |
 | 1,539,829 | Jun. 02, 1925 | F.L. Cole | Guard and work-rest mounting |
 | 2,416,493 | Feb. 25, 1947 | H.S. Newton | Sanding belt machine |
 | 2,728,364 | Dec. 27, 1955 | A.A. Muehling | Universal machine tool having a swingable boom |
