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Priority to JP11117576UpriorityCriticalpatent/JPS5329503U/ja
Priority to FR7701508Aprioritypatent/FR2356390A1/fr
Priority to DE19772703168prioritypatent/DE2703168A1/de
Priority to GB327977Aprioritypatent/GB1576479A/en
Publication of JPS5329503UpublicationCriticalpatent/JPS5329503U/ja