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Priority to JP1870068ApriorityCriticalpatent/JPS4819740B1/ja
Priority to DE1913730Aprioritypatent/DE1913730C3/de
Priority to GB14718/69Aprioritypatent/GB1199398A/en
Priority to FR6908247Aprioritypatent/FR2004516A1/fr
Priority to US75302Aprioritypatent/US3643780A/en
Publication of JPS4819740B1publicationCriticalpatent/JPS4819740B1/ja