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Priority to JP11468386UpriorityCriticalpatent/JPS6320344U/ja
Priority to DE3789738Tprioritypatent/DE3789738T2/de
Priority to EP87110704Aprioritypatent/EP0255053B1/en
Priority to KR1019870008068Aprioritypatent/KR890002938A/ko
Publication of JPS6320344UpublicationCriticalpatent/JPS6320344U/ja
Priority to US07/271,486prioritypatent/US4855549A/en
