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Priority to JP10978576UpriorityCriticalpatent/JPS5327844U/ja
Priority to DE19772733136prioritypatent/DE2733136A1/de
Priority to GB34349/77Aprioritypatent/GB1552073A/en
Priority to US05/825,400prioritypatent/US4112444A/en
Publication of JPS5327844UpublicationCriticalpatent/JPS5327844U/ja