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Priority to JP949274UpriorityCriticalpatent/JPS5315561Y2/ja
Priority to US05/513,086prioritypatent/US3944309A/en
Priority to CA210,987Aprioritypatent/CA1010411A/en
Publication of JPS5099017UpublicationCriticalpatent/JPS5099017U/ja
Application grantedgrantedCritical
Publication of JPS5315561Y2publicationCriticalpatent/JPS5315561Y2/ja