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Individual
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Individual
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Priority to JP4280082ApriorityCriticalpatent/JPS58160419A/ja
Publication of JPS58160419ApublicationCriticalpatent/JPS58160419A/ja
Publication of JPS611569B2publicationCriticalpatent/JPS611569B2/ja
E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours