| All Patents in class 451/516 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
| | 122,018 | Dec. 19, 1871 | G.A. Howe | Abrasive Paper Holder |
 | 123,888 | Feb. 20, 1872 | J.D. Gernez | Improvement in Sand Paper Holders |
| | 2,242,545 | May 20, 1941 | C.H. Randolph | Rubbing machine |
| | 2,282,043 | May 05, 1942 | G.H. Ekstrom | Rubbing machine |
 | 2,614,369 | Oct. 21, 1952 | S.D. Robins | Sanding or rubbing attachment |
 | 2,683,337 | Jul. 13, 1954 | S.E. Scace | Paper clamping device for sanding machines |
| | 2,914,889 | Dec. 01, 1959 | B.H. Mosbacher | Clamping device |
 | 3,267,622 | Aug. 23, 1966 | L. Frostad | Abrasive pad structure for portable sanding machine |
