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Priority to JP11456172UpriorityCriticalpatent/JPS5345606Y2/ja
Priority to US05/402,709prioritypatent/US3947884A/en
Priority to DE19732349920prioritypatent/DE2349920C3/de
Priority to GB4650473Aprioritypatent/GB1429256A/en
Publication of JPS4970928UpublicationCriticalpatent/JPS4970928U/ja
Application grantedgrantedCritical
Publication of JPS5345606Y2publicationCriticalpatent/JPS5345606Y2/ja