| All Patents in class 451/359 |
Patents 16 -
30
of 33
      |
| Number | Date | Patentee | Title | Type |
| 2,101,305 | Dec. 07, 1937 | F.O. Albertson | Handheld disc sander | handheld power sanders |
| 2,116,491 | May 03, 1938 | A.W. Mall | Angle grinding spindle | |
| 2,123,222 | Jul. 12, 1938 | F.O. Albertson | Handheld disc sander | handheld power sanders |
| 2,229,745 | Jan. 28, 1941 | R.F. Kneisley | Surfacing machine | sanding machines |
| 2,252,160 | Aug. 12, 1941 | P.T. Blood | Sanding machine | handheld power sanders |
| 2,267,781 | Dec. 30, 1941 | F.O. Albertson | Electric sanding machine | handheld power sanders |
| 2,268,863 | Jan. 06, 1942 | A.N. Emmons | Disk abrading machine | sanding machines |
| 2,478,074 | Aug. 02, 1949 | K.C. Atkin | Sanding machine | handheld power sanders |
| D161,484 | Jan. 02, 1951 | C.Y. McQuown | Polishing machine | sanding machines |
| 3,099,905 | Aug. 06, 1963 | P.E. Larson, P.G. Rebechini | Portable polishing tool with liquid abrasive | |
| 3,205,622 | Sep. 14, 1965 | T.J. Leveque | Rotatable grinding and surfacing tool | handheld power sanders |
| 3,287,859 | Nov. 29, 1966 | T.J. Leveque | Rotatable grinding and surfacing tool | handheld power sanders |
| 3,334,448 | Aug. 08, 1967 | R.H. Alexander | Spindle lock for a power tool | handheld power sanders |
| 3,775,911 | Dec. 04, 1973 | A. Flagge | Dual safety control for a power tool | handheld power sanders |
| 3,934,657 | Jan. 27, 1976 | I.R. Danielson | Dual safety control means for a power tool | |
