发明名称 |
Magnetic card protection system |
摘要 |
A protective device for protecting the information on magnetically encoded areas of plastic cards comprising strips of a ferro-magnetic amorphous composition having a metal-glass characteristic situated adjacent and covering the magnetically encoded areas on either side so as to redirect any corrupting electromagnetic and statomagnetic fields. In a preferred embodiment, the protective strips are incorporated in a card holding unit.
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申请公布号 |
US4851610(A) |
申请公布日期 |
1989.07.25 |
申请号 |
US19880182775 |
申请日期 |
1988.04.18 |
申请人 |
INTEGRATED CARD-GARD CORPORATION |
发明人 |
LEBLANC, KENNETH L.;HALL, GAVIN M. |
分类号 |
G06K19/02 |
主分类号 |
G06K19/02 |
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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