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| All Patents in class 60/496 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,995 | Jan. 08, 1850 | J. Black | Engine Operated by Steam and Water | steam turbines | |
| 196,038 | Oct. 09, 1877 | A.F. Partz | Rotary Engine | rotary steam engines | |