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Priority to JP8908672UpriorityCriticalpatent/JPS531823Y2/ja
Priority to GB3464573Aprioritypatent/GB1434552A/en
Priority to US384306Aprioritypatent/US3884540A/en
Priority to DE2338807Aprioritypatent/DE2338807C3/de
Publication of JPS4948679UpublicationCriticalpatent/JPS4948679U/ja
Application grantedgrantedCritical
Publication of JPS531823Y2publicationCriticalpatent/JPS531823Y2/ja