| All Patents in class 451/350 |
Patents 16 -
22
of 22
      |
| Number | Date | Patentee | Title | Type |
| 1,921,513 | Aug. 08, 1933 | A.N. Emmons | Floor finishing machine | sanding machines |
| 1,939,111 | Dec. 12, 1933 | A.N. Emmons | Abrading machine | sanding machines |
| 2,205,492 | Jun. 25, 1940 | R.A. Reid | Sanding machine | floor sanders |
| 2,282,658 | May 12, 1942 | R.F. Kneisley | Sanding belt machine | sanding machines |
| 2,480,325 | Aug. 30, 1949 | O. Hadwiger | Bowling alley sander | sanding machines |
| 2,740,238 | Apr. 03, 1956 | S.H. Sharpless | Sanding machine for bowling alleys | belt sanders |
| 3,049,839 | Aug. 21, 1962 | O.W. Smith | Air actuated platen for sanding machines | sanding machines |
