| All Patents in class 451/190 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 78,915 | Jun. 16, 1868 | E.C. Atkins | Improvement in machines for polishing metal plates | tool making machines |
| 322,838 | Jul. 21, 1885 | W.C. Margedant | Machine for finishing plow-beams | |
| 544,288 | Aug. 13, 1895 | H.W. Cole | Lathe for irregular shapes | pattern lathes |
| 651,839 | Jun. 19, 1900 | A.D. Erb | Sanding machine | sanding machines |
| 799,442 | Sep. 12, 1905 | H.L. Bornman | Sanding-machine | sanding machines |
| 811,454 | Jan. 30, 1906 | J.A. Stowell | Polishing-machine | |
| 1,611,135 | Dec. 14, 1926 | F.C. Sanford | Grinding Machine | centerless grinders |
| 1,611,136 | Dec. 14, 1926 | F.C. Sanford | Centerless Grinding Machine for Tapering Drills and the Like | centerless grinders |
| 1,733,094 | Oct. 22, 1929 | H. Isler | Centerless Grinder | centerless grinders |
| 1,794,975 | Mar. 03, 1931 | R. Mershon | Grinding Machine | grinding machines |
| 3,895,464 | Jul. 22, 1975 | F.W. Kiser | Lumber dressing and dimensioning machine | sanding machines |
| 4,594,815 | Jun. 17, 1986 | M.G. Mickelson, H.J. Mutzberg | Abrasive surfacer | belt sanders |
| 4,640,056 | Feb. 03, 1987 | L.E. Stump | Vertically self-centering feed assembly | belt sanders |
