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Priority to JP15373384UpriorityCriticalpatent/JPS6170408U/ja
Priority to US06/784,478prioritypatent/US4728962A/en
Priority to CA000492252Aprioritypatent/CA1242796A/en
Priority to GB08524750Aprioritypatent/GB2165700B/en
Priority to DE3536097Aprioritypatent/DE3536097C2/de
Priority to FR8514964Aprioritypatent/FR2571897B1/fr
Publication of JPS6170408UpublicationCriticalpatent/JPS6170408U/ja