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Application filedfiledCritical
Priority to JP1976151614UpriorityCriticalpatent/JPS5754160Y2/ja
Priority to US05/765,466prioritypatent/US4075626A/en
Publication of JPS5370168UpublicationCriticalpatent/JPS5370168U/ja
Priority to US06/047,091prioritypatent/USRE31152E/en
Application grantedgrantedCritical
Publication of JPS5754160Y2publicationCriticalpatent/JPS5754160Y2/ja