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Priority claimed from JP44043033Aexternal-prioritypatent/JPS49922B1/ja
Priority claimed from JP44043032Aexternal-prioritypatent/JPS4814562B1/ja
Priority claimed from JP44043034Aexternal-prioritypatent/JPS4831401B1/ja
Application filed by Matsushita Electric Industrial Co LtdfiledCriticalMatsushita Electric Industrial Co Ltd
Publication of BR7019288D0publicationCriticalpatent/BR7019288D0/pt