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Priority to JP9134886UpriorityCriticalpatent/JPS634062Y2/ja
Publication of JPS6213988UpublicationCriticalpatent/JPS6213988U/ja
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Publication of JPS634062Y2publicationCriticalpatent/JPS634062Y2/ja
Ship loading boom installation having loading and suspension tackles and automatic guide blocks for positioning the suspension tackle by the load tackle