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Priority to JP1988152511UpriorityCriticalpatent/JPH0631292Y2/ja
Priority to US07/349,771prioritypatent/US4966101A/en
Priority to EP89304920Aprioritypatent/EP0342918B1/en
Priority to DE68913345Tprioritypatent/DE68913345T2/de
Publication of JPH0277409UpublicationCriticalpatent/JPH0277409U/ja
Application grantedgrantedCritical
Publication of JPH0631292Y2publicationCriticalpatent/JPH0631292Y2/ja