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| Patents Granted on 1828-08-14 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,189X | Aug. 14, 1828 | J. Mackay | Fitting hammer heads for piano fortes | music instrument maker | |
| 5,190X | Aug. 14, 1828 | H. Averill | Machine for washing and pressing clothes | ||