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| Patents for John Hamilton | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-186,101,598 | Jun. 21, 1861 | J. Hannan, J. Hamilton | Improvements in indicators such as are used for ascertaining the power developed by steam engines | steam engine indicators | |
| 299,639 | Jun. 03, 1884 | J. Hamilton | Machine for dressing ships' sides | shipwright | |