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 JP14160176UpriorityCriticalpatent/JPS5359351U/ja
Priority to US05/844,198prioritypatent/US4224581A/en
Priority to DE2747415Aprioritypatent/DE2747415C3/de
Priority to GB43900/77Aprioritypatent/GB1594735A/en
Publication of JPS5359351UpublicationCriticalpatent/JPS5359351U/ja
