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Priority to JP310168ApriorityCriticalpatent/JPS5025302B1/ja
Priority to FR6900361Aprioritypatent/FR2000354A1/fr
Priority to GB08697/70Aprioritypatent/GB1261161A/en
Priority to NL6900800Aprioritypatent/NL6900800A/xx
Priority to DE19691902293prioritypatent/DE1902293C3/de
Publication of JPS5025302B1publicationCriticalpatent/JPS5025302B1/ja