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 JP1985121411UpriorityCriticalpatent/JPS6230209U/ja
Priority to US06/871,777prioritypatent/US4850664A/en
Priority to KR1019860004805Aprioritypatent/KR910006772B1/ko
Priority to CA000511822Aprioritypatent/CA1278713C/en
Publication of JPS6230209UpublicationCriticalpatent/JPS6230209U/ja
