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Priority claimed from JP1976064503Uexternal-prioritypatent/JPS5711167Y2/ja
Application filed by Matsushita Electric Industrial Co LtdfiledCriticalMatsushita Electric Industrial Co Ltd
Priority claimed from AT442876Aexternal-prioritypatent/AT344822B/de
Publication of ATA636177ApublicationCriticalpatent/ATA636177A/de
Application grantedgrantedCritical
Publication of AT348284BpublicationCriticalpatent/AT348284B/de