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Application filedfiledCritical
Priority to JP1973067820UpriorityCriticalpatent/JPS5521129Y2/ja
Priority to US478093Aprioritypatent/US3920956A/en
Priority to DE2427961Aprioritypatent/DE2427961C3/de
Priority to FR7420210Aprioritypatent/FR2232794B1/fr
Priority to IT23860/74Aprioritypatent/IT1014964B/it
Publication of JPS5016394UpublicationCriticalpatent/JPS5016394U/ja
Application grantedgrantedCritical
Publication of JPS5521129Y2publicationCriticalpatent/JPS5521129Y2/ja