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Priority to JP1976097150UpriorityCriticalpatent/JPS5926614Y2/ja
Priority to US05/816,197prioritypatent/US4164778A/en
Priority to GB30246/77Aprioritypatent/GB1565748A/en
Priority to DE2732529Aprioritypatent/DE2732529C2/de
Publication of JPS5315047UpublicationCriticalpatent/JPS5315047U/ja
Application grantedgrantedCritical
Publication of JPS5926614Y2publicationCriticalpatent/JPS5926614Y2/ja