| All Patents in class 451/357 |
Patents 1 -
10
of 18
      |
| Picture | Number | Date | Patentee | Title |
 | 2,270,309 | Jan. 20, 1942 | O.A. Kehle | Rubbing machine |
 | 2,395,537 | Feb. 26, 1946 | S.A. Crosby | Rubbing machine |
 | 2,639,564 | May 26, 1953 | K.C. Atkin | Oscillating sander |
 | 2,683,336 | Jul. 13, 1954 | S.E. Scace | Rubbing machine |
 | 2,774,292 | Dec. 18, 1956 | E. Hartmann | Earth conditioning device |
| | 2,796,704 | Jun. 25, 1957 | F.W. Moore | Orbital sander |
 | 2,885,833 | May 12, 1959 | G.M. Neff | Hand held sanding and abrading machine |
| | 2,918,761 | Dec. 29, 1959 | H.E. Earl, R.W. Hilgers | Rubbing machine |
 | 3,205,622 | Sep. 14, 1965 | T.J. Leveque | Rotatable grinding and surfacing tool |
 | 3,287,859 | Nov. 29, 1966 | T.J. Leveque | Rotatable grinding and surfacing tool |
