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Priority to JP14174288UpriorityCriticalpatent/JPH0631233Y2/ja
Priority to US07/418,634prioritypatent/US4993995A/en
Priority to EP89119928Aprioritypatent/EP0367118B1/en
Priority to DE8989119928Tprioritypatent/DE68900643D1/de
Publication of JPH0262139UpublicationCriticalpatent/JPH0262139U/ja
Application grantedgrantedCritical
Publication of JPH0631233Y2publicationCriticalpatent/JPH0631233Y2/ja