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| All Patents in class 451/904 | |||||
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| Number | Date | Patentee | Title | Type | |
| 413,786 | Oct. 29, 1889 | E. Miller | Sandpapering-Machine | sanding machines | |
| 443,795 | Dec. 30, 1890 | W.R. Root | Sandpapering-machine | tool making machines | |
| 553,806 | Jan. 28, 1896 | G.K. Hurlbut, C.R. Evits | Furniture-finisher | sanding machines | |
| 803,657 | Nov. 07, 1905 | O. Zschockelt | Collector-Polisher | commutator dressing machines | |