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| Patents for Julius Hock | |||||
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| Number | Date | Patentee | Title | Type | |
| 151,129 | May 19, 1874 | J. Hock | Petroleum Dynamic Engines | gas and gasoline engines | |
| 190,490 | May 08, 1877 | L.P. Martin, J. Hock | Hot Air Engine | hot air engines | |