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| All Patents in class 451/533 | |||||
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| Number | Date | Patentee | Title | Type | |
| 240,179 | Apr. 12, 1881 | J.L. Perry | Sanding machine | sanding machines | |
| 294,766 | Mar. 11, 1884 | F.W. Coy | Abrading-machine | sanding machines | |
| 2,714,790 | Aug. 09, 1955 | E.R. Lindenborg | Flexible abrasive rope | sanding machines | |