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| Patents for W. Gill | |||||
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| Number | Date | Patentee | Title | Type | |
| XC-628 | Apr. 30, 1856 | W. Gill | Improvement on steam engines by variable cut off and expansion gear for stationary or marine engines | steam engines | |
| XC-702 | Feb. 12, 1857 | W. Gill | Improvements in the construction of steam engines | steam engines | |