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 JP14173684UpriorityCriticalpatent/JPS6156176U/ja
Priority to US06/777,076prioritypatent/US4652036A/en
Publication of JPS6156176UpublicationCriticalpatent/JPS6156176U/ja
Priority to US07/016,290prioritypatent/US4772061A/en
