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| Patents for M. Roche | |||||
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| Number | Date | Patentee | Title | Type | |
| 262,944 | Aug. 22, 1882 | H.F. Gaskill | Cut-Off Valve Gear | steam engine valve gear | |
| 263,694 | Sep. 05, 1882 | H.F. Gaskill | Pumping engine | steam pumps | |