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Priority to JP46072819ApriorityCriticalpatent/JPS4838311A/ja
Priority to US287551Aprioritypatent/US3872020A/en
Priority to GB4236272Aprioritypatent/GB1335959A/en
Priority to DE2244641Aprioritypatent/DE2244641C3/de
Priority to FR7232405Aprioritypatent/FR2152903B1/fr
Publication of JPS4838311ApublicationCriticalpatent/JPS4838311A/ja