发明公开
- 专利标题： Credit card systems
- 专利标题（中）： Kreditkartenverfahren。
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申请号： EP82306165.0申请日： 1982-11-19
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公开(公告)号： EP0081921A1公开(公告)日： 1983-06-22
- 发明人: Easterby, Robert William
- 申请人： Hawker Siddeley Revenue Controls Limited
- 申请人地址： 177 Nutfield Road Merstham Surrey, RH1 3HH GB
- 专利权人： Hawker Siddeley Revenue Controls Limited
- 当前专利权人： Hawker Siddeley Revenue Controls Limited
- 当前专利权人地址： 177 Nutfield Road Merstham Surrey, RH1 3HH GB
- 代理机构： Bird, Vivian John
- 优先权： GB8137197 19811210
- 主分类号： G07F7/08
- IPC分类号： G07F7/08 ; G07F7/00
摘要：
A highly-secure dispensing system, particularly for public utility products such as electricity, gas or district heating, requiring identifying information on both a «master» card and a «value» card to be found compatible before a quantity of the commodity can be dispensed which is commensurate with a value on the «value» card.
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