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| Patents for William Andrews | |||||
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| Number | Date | Patentee | Title | Type | |
| 667 | Apr. 02, 1838 | O. Wright, A.A. Wright | Rotary steam-engine | rotary steam engines | |
| RE180 | Oct. 15, 1850 | W. Andrews, S.A. Bantz | Mill for Grinding Bark | bark processing machines | |