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Patents for John D. Beers | |||||
Number | Date | Patentee | Title | Type | |
7,961X | Jan. 18, 1834 | J.D. Beers | Planing and matching machine | wood planers | |
7,949 | Feb. 25, 1851 | J.D. Beers, I. Winslow | Planing-machine | wood planers |