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Priority to JP3872280UpriorityCriticalpatent/JPS56141202U/ja
Priority to US06/245,963prioritypatent/US4424737A/en
Priority to GB8109395Aprioritypatent/GB2075148B/en
Priority to FR8106126Aprioritypatent/FR2479389B1/fr
Publication of JPS56141202UpublicationCriticalpatent/JPS56141202U/ja