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Priority to JP16814276UpriorityCriticalpatent/JPS5383737U/ja
Priority to US05/859,393prioritypatent/US4144700A/en
Priority to GB51830/77Aprioritypatent/GB1593887A/en
Priority to DE2755808Aprioritypatent/DE2755808C3/de
Priority to CH1539177Aprioritypatent/CH625276A5/de
Priority to FR7737604Aprioritypatent/FR2374444A1/fr
Publication of JPS5383737UpublicationCriticalpatent/JPS5383737U/ja