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Priority to JP12199473ApriorityCriticalpatent/JPS5073673A/ja
Priority to GB44376/74Aprioritypatent/GB1481336A/en
Priority to DE2450348Aprioritypatent/DE2450348C3/de
Priority to CH1425274Aprioritypatent/CH615559GA3/xx
Priority to FR7435682Aprioritypatent/FR2249377B1/fr
Publication of JPS5073673ApublicationCriticalpatent/JPS5073673A/ja
Priority to US05/939,941prioritypatent/USRE31402E/en