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Application filedfiledCritical
Priority to JP1975108896UpriorityCriticalpatent/JPS5815672Y2/ja
Priority to US05/711,339prioritypatent/US4135865A/en
Publication of JPS5222208UpublicationCriticalpatent/JPS5222208U/ja
Priority to US05/870,316prioritypatent/US4209287A/en
Application grantedgrantedCritical
Publication of JPS5815672Y2publicationCriticalpatent/JPS5815672Y2/ja