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| Patents for Charles H. Schoff | |||||
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| Number | Date | Patentee | Title | Type | |
| 211,309 | Jan. 14, 1879 | L.H. Watson | Automatic-Governor and Cut-Off | steam engine governors | |
| 279,534 | Jun. 19, 1883 | J.J. Byrne | Adjusting Mechanism for Calipers | calipers | |