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Priority to JP2459471UpriorityCriticalpatent/JPS5040463Y2/ja
Priority to US00239693Aprioritypatent/US3814081A/en
Priority to DE2215984Aprioritypatent/DE2215984C3/de
Publication of JPS4719188UpublicationCriticalpatent/JPS4719188U/ja
Application grantedgrantedCritical
Publication of JPS5040463Y2publicationCriticalpatent/JPS5040463Y2/ja