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Convertible rowing apparatus
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Patent number 10,786,703
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Issue date Sep 29, 2020
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John C. Zimmer
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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-
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Outrigger apparatus
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Patent number 6,345,582
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Issue date Feb 12, 2002
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Edward A. Dudink
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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High-speed sailing craft
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Patent number 4,945,845
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Issue date Aug 7, 1990
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James L. Johnson
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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Wind propelled vessel
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Patent number 4,537,145
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Issue date Aug 27, 1985
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Christopher R. White
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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3870004
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Patent number 3,870,004
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Issue date Mar 11, 1975
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT