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Priority to JP44093753ApriorityCriticalpatent/JPS492927B1/ja
Priority to US84324Aprioritypatent/US3660737A/en
Priority to GB5088970Aprioritypatent/GB1338084A/en
Priority to DE2052941Aprioritypatent/DE2052941C3/de
Priority to FR707040843Aprioritypatent/FR2067320B1/fr
Publication of JPS492927B1publicationCriticalpatent/JPS492927B1/ja