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Priority to JP1265676UpriorityCriticalpatent/JPS568158Y2/ja
Priority to US05/763,120prioritypatent/US4136271A/en
Priority to GB3865/77Aprioritypatent/GB1543503A/en
Priority to CA270,883Aprioritypatent/CA1081795A/en
Priority to AU21882/77Aprioritypatent/AU500527B2/en
Publication of JPS52104141UpublicationCriticalpatent/JPS52104141U/ja
Application grantedgrantedCritical
Publication of JPS568158Y2publicationCriticalpatent/JPS568158Y2/ja