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| All Patents in class 254/389 | |||||
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| Number | Date | Patentee | Title | Type | |
| 199,955 | Feb. 05, 1878 | A. Box | Improvement in screw hoisting-pulley apparatus | hoists, winches, come-alongs | |
| 291,251 | Jan. 01, 1884 | J.J. White | Hoist | ||