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Priority to JP312379UpriorityCriticalpatent/JPS6137154Y2/ja
Priority to US06/110,102prioritypatent/US4298779A/en
Publication of JPS55102728UpublicationCriticalpatent/JPS55102728U/ja
Application grantedgrantedCritical
Publication of JPS6137154Y2publicationCriticalpatent/JPS6137154Y2/ja