| All Patents in class 451/303 |
Patents 121 -
135
of 136
      |
| Number | Date | Patentee | Title | Type |
| 2,780,033 | Feb. 05, 1957 | C.W. Albright | Offhand spool sanding machine | belt sanders |
| 2,791,070 | May 07, 1957 | L. Schaller | Abrading machine | sanding machines |
| 2,835,083 | May 20, 1958 | L.G. Brown, G. De Mambro | Belt sanding machine | belt sanders |
| 2,876,600 | Mar. 10, 1959 | R.F. Pendergast | Sanding machine | sanding machines |
| 3,124,909 | Mar. 17, 1964 | J.A. Nylund, F.J. Miehe | Combination drum and belt sanding surfacing machines | sanding machines |
| 3,334,447 | Aug. 08, 1967 | T.J. Leveque | Sanding machine | handheld power sanders |
| 3,408,775 | Nov. 05, 1968 | R.D. Rutt | Belt sanding and polishing machine | sanding machines |
| 3,529,384 | Sep. 22, 1970 | F.M. Owrey | Sanding machine | sanding machines |
| 3,570,190 | Mar. 16, 1971 | R.D. Rutt | Belt sanding and polishing machine | sanding machines |
| 3,654,738 | Apr. 11, 1972 | L.S. Sternal | Method of and apparatus for effecting superior sanding | sanding machines |
| 4,038,784 | Aug. 02, 1977 | H.W. Grivna | Method and apparatus for cross grain abrading to produce a rough sawn effect | belt sanders |
| 4,527,359 | Jul. 09, 1985 | L.E. Stump, E.C. David, D. Boehne | Segmented platen with diaphragm cylinder control | belt sanders |
| 4,621,459 | Nov. 11, 1986 | L.E. Stump, E.C. David, D. Boehne | Segmented platen with diaphragm cylinder control | belt sanders |
| 4,642,943 | Feb. 17, 1987 | J.R. Taylor, Jr. | Belt abrading apparatus and method | metal sanding machines |
| 4,719,721 | Jan. 19, 1988 | L.E. Stump | Conveyor bed assembly and vacuum platen | belt sanders |
