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| Patents Granted on 1796-05-31 | |||||
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| Number | Date | Patentee | Title | Type | |
| 118X | May 31, 1796 | E. Backus | Steam engine and boiler | steam engines | |
| GB-179,602,113 | May 31, 1796 | J. Howell | Machine for boring wooden water pipes | wood drilling and boring | |