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Application filedfiledCritical
Priority to JP11552775UpriorityCriticalpatent/JPS5554847Y2/ja
Priority to US05/714,233prioritypatent/US4071859A/en
Priority to DE2637141Aprioritypatent/DE2637141C3/de
Publication of JPS5228411UpublicationCriticalpatent/JPS5228411U/ja
Application grantedgrantedCritical
Publication of JPS5554847Y2publicationCriticalpatent/JPS5554847Y2/ja