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| Patents for William Andrew | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,916 | Dec. 04, 1849 | W. Andrew, S.A. Bantz | Mill for grinding bark | bark processing machines | |
| 11,984 | Nov. 21, 1854 | H. Snow | Presser-bar for planing machines | wood planers | |