发明名称 PREPAYMENT SYSTEM FOR SUPPLYING WATER OR GAS BY MEANS OF A WIRELESS INTELLIGENT CARD AND METER FOR SAID SYSTEM
摘要 <p>A prepayment system for supplying water or gas by means of a wireless intelligent card is described. The present invention also relates to a bidirectional meter specially designed to electronically record the coinsumption of watwe or gas.</p>
申请公布号 LT5781(B) 申请公布日期 2011.10.25
申请号 LT20110000009 申请日期 2011.02.10
申请人 SISTEMAS INTEGRALES DE MEDICION Y CONTROL STELLUMS. A. DE C. V., , 发明人 NERI-BADILLO, EDUARDO, AUGUSTIN
分类号 G06Q50/00;G01D4/00;G01F15/00;G06Q20/00 主分类号 G06Q50/00
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