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Priority to JP1987154829UpriorityCriticalpatent/JPH0161873U/ja
Priority to US07/251,791prioritypatent/US4906884A/en
Priority to DE8888309313Tprioritypatent/DE3877882T2/de
Priority to EP88309313Aprioritypatent/EP0311395B1/en
Priority to MYPI88001124Aprioritypatent/MY103781A/en
Priority to KR1019880013187Aprioritypatent/KR0138772B1/ko
Publication of JPH0161873UpublicationCriticalpatent/JPH0161873U/ja