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| All Patents in class 60/494 | |||||
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| Number | Date | Patentee | Title | Type | |
| 208,149 | Sep. 17, 1878 | B. Brazelle | Improvement in governors for steam-engines | steam engine governors | |
| 313,168 | Mar. 03, 1885 | B. Brazelle | Governor for engines | steam engine governors | |
| 1,916,433 | Jul. 04, 1933 | W.C. Muller | Speed Control Valve | hydraulic apparatus | |