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Priority to JP10315987UpriorityCriticalpatent/JPH0422034Y2/ja
Priority to US07/103,460prioritypatent/US4809654A/en
Priority to DE8787308828Tprioritypatent/DE3764230D1/de
Priority to EP87308828Aprioritypatent/EP0263672B1/en
Publication of JPS648531UpublicationCriticalpatent/JPS648531U/ja
Application grantedgrantedCritical
Publication of JPH0422034Y2publicationCriticalpatent/JPH0422034Y2/ja