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Priority to JP3591372UpriorityCriticalpatent/JPS5228096Y2/ja
Priority to DE19732310974prioritypatent/DE2310974C2/de
Publication of JPS48111810UpublicationCriticalpatent/JPS48111810U/ja
Application grantedgrantedCritical
Publication of JPS5228096Y2publicationCriticalpatent/JPS5228096Y2/ja