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Priority to JP1987133388UpriorityCriticalpatent/JPH0717245Y2/ja
Priority to US07/238,431prioritypatent/US4897571A/en
Priority to EP88114189Aprioritypatent/EP0305991B1/en
Priority to DE8888114189Tprioritypatent/DE3877661T2/de
Publication of JPS6437359UpublicationCriticalpatent/JPS6437359U/ja
Application grantedgrantedCritical
Publication of JPH0717245Y2publicationCriticalpatent/JPH0717245Y2/ja
