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Priority to JP1050480UpriorityCriticalpatent/JPS6224315Y2/ja
Priority to GB8101773Aprioritypatent/GB2071389B/en
Priority to US06/227,537prioritypatent/US4341140A/en
Priority to DE3102933Aprioritypatent/DE3102933C2/de
Publication of JPS56113392UpublicationCriticalpatent/JPS56113392U/ja
Application grantedgrantedCritical
Publication of JPS6224315Y2publicationCriticalpatent/JPS6224315Y2/ja