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Priority to JP10024772UpriorityCriticalpatent/JPS528156Y2/ja
Priority to US05/392,372prioritypatent/US4013895A/en
Priority to GB4043773Aprioritypatent/GB1441134A/en
Publication of JPS4956576UpublicationCriticalpatent/JPS4956576U/ja
Application grantedgrantedCritical
Publication of JPS528156Y2publicationCriticalpatent/JPS528156Y2/ja