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| Patents Granted on 1799-06-?? | |||||
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| Number | Date | Patentee | Title | Type | |
| NX-179,906,181 | Jun. 18, 1799 | W. Ellis | Malt, washing | ||
| 251X | Jun. 26, 1799 | M. Wigglesworth | Making Ropes | rope maker | |
| 252X | Jun. 26, 1799 | S.H. Lee | Bilious pills | medical pills and syrups | |
| 253X | Jun. 26, 1799 | E. Weld | Improvement in washing clothes | ||