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| Patents Granted on 1800-02-20 | |||||
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| Number | Date | Patentee | Title | Type | |
| 277X | Feb. 20, 1800 | J. Cox | Raising or Lifting Hides in Tanning | leatherworker | |
| 278X | Feb. 20, 1800 | B. Tyler | Grist Mill | grist mills | |