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Priority to JP11414572ApriorityCriticalpatent/JPS55422B2/ja
Priority to GB4990673Aprioritypatent/GB1443190A/en
Priority to SE7315352Aprioritypatent/SE7315352L/sv
Priority to DE19732356898prioritypatent/DE2356898A1/de
Publication of JPS4973449ApublicationCriticalpatent/JPS4973449A/ja
Publication of JPS55422B2publicationCriticalpatent/JPS55422B2/ja