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Application filedfiledCritical
Priority to JP16872188UpriorityCriticalpatent/JPH0629822Y2/ja
Priority to US07/454,766prioritypatent/US5189661A/en
Priority to AU47236/89Aprioritypatent/AU612919B2/en
Priority to KR1019890019396Aprioritypatent/KR930002355B1/ko
Priority to DE68922711Tprioritypatent/DE68922711T2/de
Priority to CA002006740Aprioritypatent/CA2006740C/en
Priority to EP89313601Aprioritypatent/EP0376688B1/en
Publication of JPH0289665UpublicationCriticalpatent/JPH0289665U/ja
Application grantedgrantedCritical
Publication of JPH0629822Y2publicationCriticalpatent/JPH0629822Y2/ja