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Priority claimed from JP1772479Aexternal-prioritypatent/JPS55109889A/en
Priority claimed from JP4843879Aexternal-prioritypatent/JPS55139596A/en
Priority claimed from JP5279979Aexternal-prioritypatent/JPS55145890A/en
Application filed by Tlv Co LtdfiledCriticalTlv Co Ltd
Publication of MX6792EpublicationCriticalpatent/MX6792E/en