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| Patents for L. S. Morrill | |||||
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| Number | Date | Patentee | Title | Type | |
| 408,708 | Aug. 13, 1889 | H. Hobbs, E.F. Gordon | Steam-generator | steam generators | |
| 422,343 | Feb. 25, 1890 | E.F. Gordon | Valve-gear for engines | ||