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| Patents Granted on 1818-07-17 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,979X | Jul. 17, 1818 | G.W. Robinson | Securing locks from being picked | ||
| 2,980X | Jul. 17, 1818 | G.W. Robinson | Setting kettles, etc. for boilers | stationary boilers | |