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