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| All Patents in class 91/10 | |||||
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| Number | Date | Patentee | Title | Type | |
| 433,164 | Jul. 29, 1890 | F.W. Dean | Compound Engine | compound steam engines | |
| 477,234 | Jun. 21, 1892 | G.S. Strong | Steam-engine | steam engines | |
| 853,359 | May 14, 1907 | C.L. Heisler | Pumping Engine | steam pumping engines | |