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 JP2719986UpriorityCriticalpatent/JPS62138930U/ja
Priority to EP87102650Aprioritypatent/EP0234564B1/en
Priority to DE8787102650Tprioritypatent/DE3775577D1/de
Priority to US07/018,572prioritypatent/US4844220A/en
Publication of JPS62138930UpublicationCriticalpatent/JPS62138930U/ja
Priority to US07/309,345prioritypatent/US4974706A/en
