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Priority to JP13997186UpriorityCriticalpatent/JPH0422457Y2/ja
Priority to EP87104763Aprioritypatent/EP0239996B1/en
Priority to DE19873787485prioritypatent/DE3787485T2/de
Publication of JPS6347484UpublicationCriticalpatent/JPS6347484U/ja
Application grantedgrantedCritical
Publication of JPH0422457Y2publicationCriticalpatent/JPH0422457Y2/ja