| All Patents in class 451/521 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 414,115 | Oct. 29, 1889 | J.S. Kenyon | Sandpapering-roller | sanding machines |
| 449,217 | Mar. 31, 1891 | A.T. Good | Polishing Cone | dental apparatus |
| 479,332 | Jul. 19, 1892 | E.K. Patten | Combined cutting and scouring head | cutterheads |
| 622,432 | Apr. 04, 1899 | J.E. Almon | Sanding machine | sanding machines |
| 646,511 | Apr. 03, 1900 | J.R. Thomas | Abrading-cylinder | sanding machines |
| 916,740 | Mar. 30, 1909 | L. Lucas | Sanding-machine | sanding machines |
| 932,466 | Aug. 31, 1909 | F. Harbers | Planing and sanding machine | sanding machines |
| 2,145,980 | Feb. 07, 1939 | O.E. Hadwiger, H.O. Schmidt | Sandpaper drum | sanding machines |
