| 发明名称 |
IMPROVED SECURITY SYSTEM |
| 摘要 |
<p>An identification device in the form of a token for a coin validator comprises a metallic disc (1) which has been cold formed to provide concentric rings of relatively high and low magnetic permeability defining a characteristic code. A magnetic detection system is disclosed, for use with a coin validator, for detecting the code on the token.</p> |
| 申请公布号 |
WO9007755(A1) |
申请公布日期 |
1990.07.12 |
| 申请号 |
WO1989GB01538 |
申请日期 |
1989.12.22 |
| 申请人 |
COIN CONTROLS LIMITED |
发明人 |
FRY, ANDREW, ROBERT;GOODMAN, ALAN, MALCOLM |
| 分类号 |
A44C21/00;G06K1/12;G06K7/08;G06K19/12;G07F1/06;G07F7/02 |
主分类号 |
A44C21/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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