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Priority to JP8986972UpriorityCriticalpatent/JPS4947326U/ja
Priority to GB3646873Aprioritypatent/GB1430258A/en
Priority to US384170Aprioritypatent/US3874695A/en
Priority to FR7328237Aprioritypatent/FR2195206A5/fr
Priority to DE19732339048prioritypatent/DE2339048A1/de
Publication of JPS4947326UpublicationCriticalpatent/JPS4947326U/ja