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Priority to JP11024676UpriorityCriticalpatent/JPS5328309U/ja
Priority to DE2735034Aprioritypatent/DE2735034C2/de
Priority to GB33969/77Aprioritypatent/GB1529185A/en
Priority to FR7725417Aprioritypatent/FR2362278A1/fr
Priority to US05/826,253prioritypatent/US4157881A/en
Publication of JPS5328309UpublicationCriticalpatent/JPS5328309U/ja