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Application filedfiledCritical
Priority to JP1976099917UpriorityCriticalpatent/JPS5614496Y2/ja
Priority to US05/768,732prioritypatent/US4170410A/en
Priority to DE19772708153prioritypatent/DE2708153A1/de
Publication of JPS5318134UpublicationCriticalpatent/JPS5318134U/ja
Application grantedgrantedCritical
Publication of JPS5614496Y2publicationCriticalpatent/JPS5614496Y2/ja