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Priority to JP18784181UpriorityCriticalpatent/JPS5891004U/ja
Priority to DE8282105779Tprioritypatent/DE3269801D1/de
Priority to EP82105779Aprioritypatent/EP0068495B1/en
Priority to US06/410,954prioritypatent/US4517878A/en
Publication of JPS5891004UpublicationCriticalpatent/JPS5891004U/ja
Application grantedgrantedCritical
Publication of JPS626324Y2publicationCriticalpatent/JPS626324Y2/ja