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Priority claimed from JP1975085489Uexternal-prioritypatent/JPS5719577Y2/ja
Priority claimed from JP1976049741Uexternal-prioritypatent/JPS52140976U/ja
Application filed by Matsushita Electric Industrial Co LtdfiledCriticalMatsushita Electric Industrial Co Ltd
Priority to AT636177ApriorityCriticalpatent/AT348284B/de
Publication of ATA442876ApublicationCriticalpatent/ATA442876A/de
Application grantedgrantedCritical
Publication of AT344822BpublicationCriticalpatent/AT344822B/de