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| Patents Granted on 1828-06-30 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,155X | Jun. 30, 1828 | D.E. Smith | Drops for the cure of coughs, colds, etc. | ||
| 5,156X | Jun. 30, 1828 | A. Straub | Making leather waterproof | ||