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Priority to JP1976175326UpriorityCriticalpatent/JPS556823Y2/ja
Priority to FR7705617Aprioritypatent/FR2342373A1/fr
Priority to US05/771,974prioritypatent/US4143719A/en
Priority to DE19772708252prioritypatent/DE2708252C2/de
Publication of JPS5392905UpublicationCriticalpatent/JPS5392905U/ja
Application grantedgrantedCritical
Publication of JPS556823Y2publicationCriticalpatent/JPS556823Y2/ja