Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to JP1986108590UpriorityCriticalpatent/JPS6315551U/ja
Priority to KR1019870002932Aprioritypatent/KR900008794B1/ko
Priority to CN87103377Aprioritypatent/CN1006748B/zh
Priority to EP87108321Aprioritypatent/EP0249196B1/en
Priority to DE3752218Tprioritypatent/DE3752218T2/de
Publication of JPS6315551UpublicationCriticalpatent/JPS6315551U/ja
Priority to US07/171,228prioritypatent/US4808883A/en
