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| Patents for William Cumberland | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,550X | Jul. 09, 1822 | W. Cumberland | Machine for dressing flax and hemp | flax and hemp machines | |
| 3,577X | Aug. 27, 1822 | W. Cumberland | Bleaching unrotted flax and hemp | ||
| 3,615X | Nov. 29, 1822 | W. Cumberland | Machine for cleaning unrotted flax and hemp | flax and hemp machines | |