发明名称 Water metering system
摘要 <p>A monitoring unit determines the commencement of water through a water supply pipe of at least one water device e.g. sink, conclusion of water flow and flow duration. A processing unit calculates the cost for usage of water, by multiplying the flow duration accumulated in a preset time period with water cost per unit of flow duration.</p>
申请公布号 EP1411329(A2) 申请公布日期 2004.04.21
申请号 EP20030256266 申请日期 2003.10.03
申请人 SMITH, WADE W.;SAAR, DAVID A. 发明人 SMITH, WADE W.;SAAR, DAVID A.
分类号 G01D4/00;G01F15/075;(IPC1-7):G01F15/075 主分类号 G01D4/00
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