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| Patents for C. Ridgway | |||||
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| Number | Date | Patentee | Title | Type | |
| 374,756 | Dec. 13, 1887 | W.H. Ridgway | Crane | jib cranes | |
| 582,092 | May 04, 1897 | W.H. Ridgway | Air-hoist | hoists, winches, come-alongs | |