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Priority to JP1972124796UpriorityCriticalpatent/JPS547090Y2/ja
Priority to JP47108345Aprioritypatent/JPS4966057A/ja
Priority to GB4973173Aprioritypatent/GB1447528A/en
Priority to DE2354552Aprioritypatent/DE2354552B2/de
Publication of JPS4980143UpublicationCriticalpatent/JPS4980143U/ja
Priority to US05/606,425prioritypatent/US4241313A/en
Application grantedgrantedCritical
Publication of JPS547090Y2publicationCriticalpatent/JPS547090Y2/ja