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Priority to JP10149872UpriorityCriticalpatent/JPS5236534Y2/ja
Priority to IT6961073Aprioritypatent/IT999537B/it
Publication of JPS4959462UpublicationCriticalpatent/JPS4959462U/ja
Application grantedgrantedCritical
Publication of JPS5236534Y2publicationCriticalpatent/JPS5236534Y2/ja