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Detlef G. H. Luth
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Hamburg, DT
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Ship and pier for extraction of valuable materials from the sea bed
Patent number
3,975,841
Issue date
Aug 24, 1976
Howaldtswerke-Deutsche Werft Aktiengesellschaft Hamburg und Kiel
Heinz W. L. Steenken
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT