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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Publication date
Application filedfiledCritical
Priority to JP1980025200UpriorityCriticalpatent/JPS6131008Y2/ja
Priority to PCT/JP1981/000036prioritypatent/WO1981002433A1/ja
Priority to US06/296,424prioritypatent/US4393647A/en
Priority to DE8181900499Tprioritypatent/DE3168418D1/de
Priority to EP81900499Aprioritypatent/EP0046810B1/en
Publication of JPS56128355UpublicationCriticalpatent/JPS56128355U/ja
Application grantedgrantedCritical
Publication of JPS6131008Y2publicationCriticalpatent/JPS6131008Y2/ja