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Priority to JP14247979UpriorityCriticalpatent/JPS5660126U/ja
Priority to GB8032375Aprioritypatent/GB2062304B/en
Priority to DE3038613Aprioritypatent/DE3038613C2/de
Priority to CH771880Aprioritypatent/CH648181GA3/de
Publication of JPS5660126UpublicationCriticalpatent/JPS5660126U/ja