| All Patents in class 451/518 |
Patents 1 -
10
of 10
      |
| Picture | Number | Date | Patentee | Title |
| | 122,018 | Dec. 19, 1871 | G.A. Howe | Abrasive Paper Holder |
 | 618,008 | Jan. 17, 1899 | J.S. Horner | Sharpener for edge tools |
 | 779,630 | Jan. 10, 1905 | F. Urban | Sanding or polishing machine |
 | 1,736,056 | Nov. 19, 1929 | E.C. Schacht | Abrading device |
 | 1,968,215 | Jul. 31, 1934 | N.F. McNaught, E.H. Peterson | Tool for cleaning commutators and the like |
| | 2,282,043 | May 05, 1942 | G.H. Ekstrom | Rubbing machine |
 | 2,393,089 | Jan. 15, 1946 | S.A. Crosby | Rubbing pad for polishing machines |
 | 2,519,620 | Aug. 22, 1950 | P. Zasadny, B.J. Zitek | Gripping and tensioning device for rubbing pad abrading sheets |
 | 2,635,396 | Apr. 21, 1953 | H.R. Johnson | Portable rubbing machine |
| | 2,914,889 | Dec. 01, 1959 | B.H. Mosbacher | Clamping device |
