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Priority to JP5357173UpriorityCriticalpatent/JPS504770U/ja
Priority to GB1985174Aprioritypatent/GB1435422A/en
Priority to US467748Aprioritypatent/US3899871A/en
Priority to DE2422067Aprioritypatent/DE2422067A1/de
Priority to FR7415896Aprioritypatent/FR2229089B1/fr
Publication of JPS504770UpublicationCriticalpatent/JPS504770U/ja