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Priority to JP3313972UpriorityCriticalpatent/JPS5214021Y2/ja
Priority to DE2307530Aprioritypatent/DE2307530C3/de
Priority to US00332744Aprioritypatent/US3836264A/en
Publication of JPS48110031UpublicationCriticalpatent/JPS48110031U/ja
Application grantedgrantedCritical
Publication of JPS5214021Y2publicationCriticalpatent/JPS5214021Y2/ja