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| All Patents in class 254/372 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 411,165 | Sep. 17, 1889 | O.H. Noack | Hoisting-gear | |
 | 4,476,801 | Oct. 16, 1984 | D. Foster, C. Rich | Mooring device | |
 | 4,722,293 | Feb. 02, 1988 | D. Foster, R. Ballantyne | Integrated winch and windlass | |
 | 4,841,898 | Jun. 27, 1989 | R. Ballantyne | Anchoring system for floating structure | |
 | 4,862,821 | Sep. 05, 1989 | R. Ballantyne | Mechanism for tensioning a moving chain | |