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| All Patents in class 451/336 | |||||
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| Number | Date | Patentee | Title | Type | |
| 714,899 | Dec. 02, 1902 | E.B. Hayes | Sanding-machine | sanding machines | |
| 1,170,010 | Feb. 01, 1916 | M.A. Smith | Automatic metal-shaping machine | metal shapers | |
| 4,594,815 | Jun. 17, 1986 | M.G. Mickelson, H.J. Mutzberg | Abrasive surfacer | belt sanders | |
| 4,640,056 | Feb. 03, 1987 | L.E. Stump | Vertically self-centering feed assembly | belt sanders | |
| 4,719,721 | Jan. 19, 1988 | L.E. Stump | Conveyor bed assembly and vacuum platen | belt sanders | |