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Application filedfiledCritical
Priority to JP10642575UpriorityCriticalpatent/JPS5550827Y2/ja
Priority to US05/708,898prioritypatent/US4101946A/en
Priority to CA257,844Aprioritypatent/CA1073550A/en
Publication of JPS5220224UpublicationCriticalpatent/JPS5220224U/ja
Application grantedgrantedCritical
Publication of JPS5550827Y2publicationCriticalpatent/JPS5550827Y2/ja