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Priority to JP1972134146UpriorityCriticalpatent/JPS5240453Y2/ja
Priority to GB2027973Aprioritypatent/GB1428555A/en
Priority to US00357171Aprioritypatent/US3836744A/en
Priority to FR7317784Aprioritypatent/FR2184942B1/fr
Priority to CA171,735Aprioritypatent/CA979491A/en
Publication of JPS4989752UpublicationCriticalpatent/JPS4989752U/ja
Application grantedgrantedCritical
Publication of JPS5240453Y2publicationCriticalpatent/JPS5240453Y2/ja