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| All Patents in class 451/502 | |||||
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| Number | Date | Patentee | Title | Type | |
| 394,406 | Dec. 11, 1888 | W.M. Seeger | Lathe Tool for Finishing and Polishing | lathe tools | |
| 441,635 | Dec. 02, 1890 | J.B. Bennett, A.P. Boardman | Polisher | sanding machines | |