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Priority to JP5959473ApriorityCriticalpatent/JPS508376A/ja
Priority to DE19742425391prioritypatent/DE2425391A1/de
Priority to IT68656/74Aprioritypatent/IT1011887B/it
Priority to FR7418472Aprioritypatent/FR2231348A1/fr
Priority to US473837Aprioritypatent/US3909869A/en
Publication of JPS508376ApublicationCriticalpatent/JPS508376A/ja