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| Patents for C. N. G. Butt | |||||
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| Number | Date | Patentee | Title | Type | |
| 190,441 | May 08, 1877 | W.J. Liddell | Improvement in steam-engines | steam engines | |
| 333,765 | Jan. 05, 1886 | W.J. Liddell | Machine for molding pulleys | machine making | |