| All Patents in class 451/490 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 115,414 | May 30, 1871 | J. Barker | Improvement in Sand Papering Machines | sanding machines |
| 235,214 | Dec. 07, 1880 | E.M. Cross | Emery Wheel | |
| 434,210 | Aug. 12, 1890 | G.W. Smith | Sand-paper head | sanding machines |
| 443,795 | Dec. 30, 1890 | W.R. Root | Sandpapering-machine | tool making machines |
| 581,787 | May 04, 1897 | G. Stickley | Sandpapering-wheel | sanding machines |
| 646,511 | Apr. 03, 1900 | J.R. Thomas | Abrading-cylinder | sanding machines |
| 1,366,633 | Jan. 25, 1921 | A.A. Clarke | Work-engaging support for surface-treating machine | drum sanders |
| 1,639,155 | Aug. 16, 1927 | W.L. Bigsby, R.A. Williams | Sander drum | sanding machines |
| 1,811,037 | Jun. 23, 1931 | F.O. Albertson, G. Olsen | Abrasive disk | handheld power sanders |
