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Priority to JP9691782UpriorityCriticalpatent/JPS592545U/ja
Priority to DE19833315733prioritypatent/DE3315733A1/de
Priority to US06/507,709prioritypatent/US4527176A/en
Publication of JPS592545UpublicationCriticalpatent/JPS592545U/ja
Application grantedgrantedCritical
Publication of JPH0226716Y2publicationCriticalpatent/JPH0226716Y2/ja