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| Patents Granted on 1793-03-?? | |||||
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| Number | Date | Patentee | Title | Type | |
| 59X | Mar. 13, 1793 | J. Williams, Jr. | Moulds for claying sugar | patternmaker | |
| GB-179,301,943 | Mar. 25, 1793 | M. Pitts | Steam engine | steam engines | |