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| All Patents in class 451/513 | |||||
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| Number | Date | Patentee | Title | Type | |
| 361,399 | Apr. 19, 1887 | J. Davis | Sand-paper head | sanding machines | |
| 577,582 | Feb. 23, 1897 | H.J. Mitchell, F.L. Lane | Abrading-cylinder | sanding machines | |
| 1,045,201 | Nov. 26, 1912 | C.G. Shoop | Pneumatic roll | sanding machines | |
| 1,968,215 | Jul. 31, 1934 | N.F. McNaught, E.H. Peterson | Tool for cleaning commutators and the like | ||