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Priority to JP11364072UpriorityCriticalpatent/JPS5421865Y2/ja
Priority to GB4297773Aprioritypatent/GB1435780A/en
Priority to US398368Aprioritypatent/US3864920A/en
Priority to FR7333469Aprioritypatent/FR2199771A5/fr
Publication of JPS4969735UpublicationCriticalpatent/JPS4969735U/ja
Priority to US05/536,783prioritypatent/US3991576A/en
Application grantedgrantedCritical
Publication of JPS5421865Y2publicationCriticalpatent/JPS5421865Y2/ja