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Application filedfiledCritical
Priority to JP13364074UpriorityCriticalpatent/JPS557930Y2/ja
Priority to US05/626,374prioritypatent/US3999198A/en
Priority to DE19752549662prioritypatent/DE2549662A1/de
Publication of JPS5160237UpublicationCriticalpatent/JPS5160237U/ja
Application grantedgrantedCritical
Publication of JPS557930Y2publicationCriticalpatent/JPS557930Y2/ja