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Priority to JP1973017441UpriorityCriticalpatent/JPS5332026Y2/ja
Priority to DE19742406185prioritypatent/DE2406185A1/de
Priority to GB580374Aprioritypatent/GB1455900A/en
Priority to US441276Aprioritypatent/US3898677A/en
Publication of JPS49120232UpublicationCriticalpatent/JPS49120232U/ja
Application grantedgrantedCritical
Publication of JPS5332026Y2publicationCriticalpatent/JPS5332026Y2/ja