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.)
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Priority to JP1987143448UpriorityCriticalpatent/JPS6448690U/ja
Priority to US07/207,983prioritypatent/US4943800A/en
Priority to DE3852431Tprioritypatent/DE3852431T2/de
Priority to EP88305538Aprioritypatent/EP0296766B1/en
Priority to KR1019880007478Aprioritypatent/KR910004439B1/ko
Publication of JPS6448690UpublicationCriticalpatent/JPS6448690U/ja
