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Priority to JP40075424ApriorityCriticalpatent/JPS493399B1/ja
Priority to DE1966T0032680prioritypatent/DE1567852B2/de
Priority to NL6617100Aprioritypatent/NL6617100A/xx
Priority to US15743Aprioritypatent/US3676365A/en
Publication of JPS493399B1publicationCriticalpatent/JPS493399B1/ja