| All Patents in class 451/305 |
Patents 16 -
23
of 23
      |
| Number | Date | Patentee | Title | Type |
| 2,072,951 | Mar. 09, 1937 | J.O. Olsen, C. Johnson | Abrading machine | |
| 2,089,808 | Aug. 10, 1937 | W.F. Ocenasek | Sanding machine | sanding machines |
| 2,446,597 | Aug. 10, 1948 | H.J. Kingsbury | Worktable for belt grinders or the like | sanding machines |
| 2,462,788 | Feb. 22, 1949 | D.E. Sutton | Worktable for belt grinders and the like | sanding machines |
| 2,691,255 | Oct. 12, 1954 | J.Y. Blazek | Brake shoe and lining grinder | brake maintenance |
| 3,893,265 | Jul. 08, 1975 | D.C. Elm, A.J. Stinn | Vertical abrasive belt type surface grinder | metal sanding machines |
| 4,262,455 | Apr. 21, 1981 | R. Rettew | Head Positioning for a Belt Grinder | surface grinders |
| 4,267,671 | May 19, 1981 | R. Rettew | Positioning Of An Abrasive Belt On A Grinding Machine | surface grinders |
