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Patents for Backus A. Beardsley | |||||
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Number | Date | Patentee | Title | Type | |
2,944 | Feb. 04, 1843 | B.A. Beardsley | Mill for Grinding Bark | bark processing machines | |
20,692 | Jun. 29, 1858 | B.A. Beardsley | Bark Mill | bark processing machines |