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Application filedfiledCritical
Priority to JP2637471UpriorityCriticalpatent/JPS5137484Y2/ja
Priority to DE19722216907prioritypatent/DE2216907A1/de
Publication of JPS4724121UpublicationCriticalpatent/JPS4724121U/ja
Priority to US390686Aprioritypatent/US3858477A/en
Application grantedgrantedCritical
Publication of JPS5137484Y2publicationCriticalpatent/JPS5137484Y2/ja