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| Patents for J. W. Wingard | |||||
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| Number | Date | Patentee | Title | Type | |
| 582,092 | May 04, 1897 | W.H. Ridgway | Air-hoist | hoists, winches, come-alongs | |
| 666,156 | Jan. 15, 1901 | E.B. Ridgway | Steam hydraulic elevator | elevators and lifts | |