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| All Patents in class 427/401 | |||||
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| Number | Date | Patentee | Title | Type | |
| 31,678 | Mar. 12, 1861 | A.T. Serrell | Feeding-roller for rotary planing | wood planers | |
| 2,041,345 | May 19, 1936 | F.O. Jaques | Method of Making a Tool | tool making | |