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Priority to JP12536373UpriorityCriticalpatent/JPS5071037U/ja
Priority to GB4636874Aprioritypatent/GB1441691A/en
Priority to IT2891574Aprioritypatent/IT1025288B/it
Priority to DE19742451371prioritypatent/DE2451371A1/de
Priority to FR7436329Aprioritypatent/FR2249776B3/fr
Publication of JPS5071037UpublicationCriticalpatent/JPS5071037U/ja