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| All Patents in class 254/369 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,633,328 | Mar. 31, 1953 | B.E. Wallace | Winch | hoists, winches, come-alongs | |
| 2,913,224 | Nov. 17, 1959 | G. Uhlig | Winch | hoists, winches, come-alongs | |
| 3,198,487 | Aug. 03, 1965 | D.C. Cox | Rapid lowering winch-hoist | hoists, winches, come-alongs | |