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