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Priority to JP1987084272UpriorityCriticalpatent/JPH081548Y2/ja
Priority to US07/187,127prioritypatent/US4931602A/en
Priority to KR2019880006985Uprioritypatent/KR910002341Y1/ko
Priority to EP88107952Aprioritypatent/EP0292850B1/en
Priority to DE3851093Tprioritypatent/DE3851093T2/de
Publication of JPS63191548UpublicationCriticalpatent/JPS63191548U/ja
Application grantedgrantedCritical
Publication of JPH081548Y2publicationCriticalpatent/JPH081548Y2/ja