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Hitachi Ltd
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Hitachi Ltd
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Publication date
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP779977ApriorityCriticalpatent/JPS5393285A/en
Publication of JPS5393285ApublicationCriticalpatent/JPS5393285A/en
PURPOSE: To provide water supply controller for water system supplied from multiple water sources in eliminating the generation of red tide by preventing the water pressure fluctuation in water pipe network with the prevention of back flow of water.