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| Patents Granted on 1826-03-16 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,361X | Mar. 16, 1826 | G.W. Robinson, J. Brown | Fire proof window shutters | ||
| 4,362X | Mar. 16, 1826 | G.W. Robinson | Spinning machine | spinner | |