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Priority to JP1971012266UpriorityCriticalpatent/JPS4710231U/ja
Priority to US156356Aprioritypatent/US3689105A/en
Priority to GB3009771Aprioritypatent/GB1330116A/en
Priority to FR7123912Aprioritypatent/FR2098122A1/fr
Priority to DE2133050Aprioritypatent/DE2133050C3/de
Priority to CA117564Aprioritypatent/CA935458A/en
Publication of JPS4710231UpublicationCriticalpatent/JPS4710231U/ja