| http://www.w3.org/ns/prov#value | - University of Washington (Seattle, WA)International Classification: G01F 1/34, G01M 3/26U.S. Classification: 73 40, 7386143Abstract: By monitoring pressure transients in a liquid within a liquid distribution system using only a single sensor, events such as the opening and closing of valves at specific fixtures are readily detected.
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