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Priority to JP50049659ApriorityCriticalpatent/JPS51126492A/ja
Publication of JPS51126492ApublicationCriticalpatent/JPS51126492A/ja
Publication of JPS5642198B2publicationCriticalpatent/JPS5642198B2/ja
H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom