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Application filedfiledCritical
Priority to JP4522372UpriorityCriticalpatent/JPS5151702Y2/ja
Priority to DE19722252096prioritypatent/DE2252096A1/de
Publication of JPS496622UpublicationCriticalpatent/JPS496622U/ja
Priority to US506692Aprioritypatent/US3921281A/en
Application grantedgrantedCritical
Publication of JPS5151702Y2publicationCriticalpatent/JPS5151702Y2/ja