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Publication date
Application filedfiledCritical
Priority to JP1987122978UpriorityCriticalpatent/JPH0523647Y2/ja
Priority to DE8888304790Tprioritypatent/DE3863003D1/de
Priority to EP88304790Aprioritypatent/EP0293203B1/en
Priority to CA000567858Aprioritypatent/CA1302309C/en
Priority to KR1019880006250Aprioritypatent/KR940007611B1/ko
Publication of JPS6428468UpublicationCriticalpatent/JPS6428468U/ja
Priority to US07/423,667prioritypatent/US5014752A/en
Application grantedgrantedCritical
Publication of JPH0523647Y2publicationCriticalpatent/JPH0523647Y2/ja
