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Priority to JP4895967ApriorityCriticalpatent/JPS4921937B1/ja
Priority to US746867Aprioritypatent/US3513972A/en
Priority to GB1229315Dprioritypatent/GB1229315A/en
Priority to DE19681774625prioritypatent/DE1774625A1/de
Priority to SE1032168Aprioritypatent/SE343768B/xx
Priority to FR1573790Dprioritypatent/FR1573790A/fr
Publication of JPS4921937B1publicationCriticalpatent/JPS4921937B1/ja