| 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 |
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 consumption of water or gas. |
| 申请公布号 |
AP3717(A) |
申请公布日期 |
2016.06.30 |
| 申请号 |
AP20110005523 |
申请日期 |
2008.08.28 |
| 申请人 |
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发明人 |
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| 分类号 |
G06Q50/00;G01D4/00;G01F15/06;G06Q20/00 |
主分类号 |
G06Q50/00 |
| 代理机构 |
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