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 JP12038072UpriorityCriticalpatent/JPS5128508Y2/ja
Priority to US00394817Aprioritypatent/US3857458A/en
Priority to DE19732345803prioritypatent/DE2345803A1/de
Publication of JPS4972816UpublicationCriticalpatent/JPS4972816U/ja
Application grantedgrantedCritical
Publication of JPS5128508Y2publicationCriticalpatent/JPS5128508Y2/ja
