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Priority to JP1987110816UpriorityCriticalpatent/JPH0434102Y2/ja
Priority to US07/221,293prioritypatent/US5038884A/en
Priority to DE8888306680Tprioritypatent/DE3865568D1/de
Priority to EP88306680Aprioritypatent/EP0300776B1/en
Publication of JPS6414532UpublicationCriticalpatent/JPS6414532U/ja
Application grantedgrantedCritical
Publication of JPH0434102Y2publicationCriticalpatent/JPH0434102Y2/ja