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Publication date
Application filedfiledCritical
Priority to JP19513981UpriorityCriticalpatent/JPS5896785U/ja
Priority to US06/451,835prioritypatent/US4561605A/en
Publication of JPS5896785UpublicationCriticalpatent/JPS5896785U/ja
Priority to US06/792,861prioritypatent/US4676452A/en
Application grantedgrantedCritical
Publication of JPS631825Y2publicationCriticalpatent/JPS631825Y2/ja