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Adjustable folding propeller
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Patent number 4,768,927
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Issue date Sep 6, 1988
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Confol ApS
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Torben Munk
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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Foldable propellers
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Patent number 4,095,919
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Issue date Jun 20, 1978
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Gorivaerk AS
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Nils Oluf Ehrenskjold
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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Propeller
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Patent number 4,094,614
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Issue date Jun 13, 1978
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Gori-Vaerk A/S
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Torben Munk
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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Foldable propellers
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Patent number 3,981,613
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Issue date Sep 21, 1976
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Gori-Vaerk A/S
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Nils Oluf Ehrenskjold
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT