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| All Patents in class 451/497 | |||||
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| Number | Date | Patentee | Title | Type | |
| 469,226 | Feb. 23, 1892 | A.P. Boardman | Abrading-cylinder for polishing-machines | sanding machines | |
| 1,887,623 | Nov. 15, 1932 | C.H. Driver | Surfacing roll | drum sanders | |
| 2,145,980 | Feb. 07, 1939 | O.E. Hadwiger, H.O. Schmidt | Sandpaper drum | sanding machines | |