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Priority to JP16101888UpriorityCriticalpatent/JPH073420Y2/ja
Priority to EP89121014Aprioritypatent/EP0369378B1/en
Priority to DE1989618553prioritypatent/DE68918553T2/de
Publication of JPH0281552UpublicationCriticalpatent/JPH0281552U/ja
Priority to US07/735,709prioritypatent/US5171145A/en
Application grantedgrantedCritical
Publication of JPH073420Y2publicationCriticalpatent/JPH073420Y2/ja