| All Patents in class 451/300 |
Patents 16 -
30
of 30
      |
| Number | Date | Patentee | Title | Type |
| 3,364,626 | Jan. 23, 1968 | W.C. Keyes | Belt sanding and polishing machines | sanding machines |
| 3,400,493 | Sep. 10, 1968 | W.C. Keyes | Belt sanding and polishing machine | sanding machines |
| 3,455,066 | Jul. 15, 1969 | M.R. Estabrook | Feed rate control for abrading machines | |
| 3,608,245 | Sep. 28, 1971 | R.G. Fair, Jr., C.D. Brotherton | Belt sanding machine | sanding machines |
| 3,701,219 | Oct. 31, 1972 | L.S. Sternal | Apparatus for effecting superior sanding | sanding machines |
| 3,782,044 | Jan. 01, 1974 | P.H. Olin | Wide abrasive belt type lumber planing machine | sanding machines |
| 3,832,808 | Sep. 03, 1974 | F.W. Kiser | Abrasive belt-type lumber planing machine | sanding machines |
| 3,872,627 | Mar. 25, 1975 | G.L. Schuster | Wide belt sanding machine with improved dust collector | belt sanders |
| 4,322,918 | Apr. 06, 1982 | C.I. Steinback | Abrasive grinding machine | sanding machines |
| 4,527,359 | Jul. 09, 1985 | L.E. Stump, E.C. David, D. Boehne | Segmented platen with diaphragm cylinder control | belt sanders |
| 4,594,815 | Jun. 17, 1986 | M.G. Mickelson, H.J. Mutzberg | Abrasive surfacer | belt sanders |
| 4,621,459 | Nov. 11, 1986 | L.E. Stump, E.C. David, D. Boehne | Segmented platen with diaphragm cylinder control | belt sanders |
| 4,640,056 | Feb. 03, 1987 | L.E. Stump | Vertically self-centering feed assembly | belt sanders |
| 4,651,474 | Mar. 24, 1987 | E.C. David | Wide belt sanding machine with platen oscillating means | belt sanders |
| 4,719,721 | Jan. 19, 1988 | L.E. Stump | Conveyor bed assembly and vacuum platen | belt sanders |
