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| Patents for John Davidson | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,702X | Apr. 03, 1812 | J. Davidson | Horizontal churn | churns | |
| 2,320X | May 29, 1815 | J. Davidson, W. Duncan | Raising the knap of cloth | ||
| 8,225X | May 29, 1834 | J. Davidson | Shearing broad cloths | cloth shearing machines | |