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Cone clutch transmission
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Patent number 4,763,765
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Issue date Aug 16, 1988
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Twin Disc, Incorporated
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James B. Black
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Marine propulsion system
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Patent number 4,459,873
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Issue date Jul 17, 1984
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Twin Disc, Incorporated
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James B. Black
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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Vibration resistant mechanical clutch
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Patent number 4,016,962
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Issue date Apr 12, 1977
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Twin Disc, Incorporated
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James B. Black
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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