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Priority to JP4592674UpriorityCriticalpatent/JPS5343997Y2/ja
Priority to US05/570,079prioritypatent/US4050638A/en
Priority to DE2518072Aprioritypatent/DE2518072C3/de
Priority to FR7512690Aprioritypatent/FR2269177B1/fr
Publication of JPS50135900UpublicationCriticalpatent/JPS50135900U/ja
Application grantedgrantedCritical
Publication of JPS5343997Y2publicationCriticalpatent/JPS5343997Y2/ja