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| All Patents in class 91/455 | |||||
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| Number | Date | Patentee | Title | Type | |
| 9,406X | Feb. 17, 1836 | W. Duff, T. Murphy | Valve, puppet, raising, etc. | ||
| 651,502 | Jun. 12, 1900 | E.E. Fitzgerald | Sawmill Set-Works | sawmill set works | |
| 2,431,619 | Nov. 25, 1947 | E.C. Read | Steam engine with keyed connection between piston rod and crosshead | steam engines | |