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Priority to JP11519770ApriorityCriticalpatent/JPS492623B1/ja
Priority to DE19712126160prioritypatent/DE2126160C3/de
Priority to GB1730871Aprioritypatent/GB1357135A/en
Priority to NL7107405Aprioritypatent/NL7107405A/xx
Publication of JPS492623B1publicationCriticalpatent/JPS492623B1/ja