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 JP10345886UpriorityCriticalpatent/JPS639545U/ja
Priority to EP87305897Aprioritypatent/EP0251807B1/en
Priority to DE8787305897Tprioritypatent/DE3784274T2/de
Priority to US07/069,832prioritypatent/US4742724A/en
Publication of JPS639545UpublicationCriticalpatent/JPS639545U/ja
