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| All Patents in class 254/296 | |||||
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| Number | Date | Patentee | Title | Type | |
| 185,895 | Jan. 02, 1877 | S.E. Chubbuck | Improvement in elevators | elevators and lifts | |
| 910,798 | Jan. 26, 1909 | W.O. Duntley | Electric hoist | hoists, winches, come-alongs | |