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Priority to JP2459771UpriorityCriticalpatent/JPS5216799Y2/ja
Priority to US00239693Aprioritypatent/US3814081A/en
Priority to DE2215984Aprioritypatent/DE2215984C3/de
Publication of JPS4718588UpublicationCriticalpatent/JPS4718588U/ja
Application grantedgrantedCritical
Publication of JPS5216799Y2publicationCriticalpatent/JPS5216799Y2/ja