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 JP14098086UpriorityCriticalpatent/JPS6348052U/ja
Priority to PCT/JP1987/000669prioritypatent/WO1988002080A1/ja
Priority to US07/184,632prioritypatent/US4867641A/en
Publication of JPS6348052UpublicationCriticalpatent/JPS6348052U/ja
