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Priority claimed from JP60077065Aexternal-prioritypatent/JPS61236208A/en
Priority claimed from JP11904485Aexternal-prioritypatent/JPS61275917A/en
Priority claimed from JP61009756Aexternal-prioritypatent/JP2640936B2/en
Application filed by Toyo Communication EquipfiledCriticalToyo Communication Equip
Publication of SG48443A1publicationCriticalpatent/SG48443A1/en