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Priority to JP45030378ApriorityCriticalpatent/JPS4944681B1/ja
Priority to SE432171Aprioritypatent/SE367741B/xx
Priority to DE19712116209prioritypatent/DE2116209A1/de
Priority to AT285971Aprioritypatent/AT308243B/de
Priority to FR7111969Aprioritypatent/FR2089190A5/fr
Priority to GB2607871Aprioritypatent/GB1347098A/en
Publication of JPS4944681B1publicationCriticalpatent/JPS4944681B1/ja