| 摘要 |
PROBLEM TO BE SOLVED: To provide an antimagnetic case for passbook, magnetic card, or the like which can protect their magnetic recording layers from external magnetic fields and also provide a low-cost maintenance by adopting a constitution which allows antimagnetic plates to be used continuously by changing just a plastic case when the case is damaged. SOLUTION: This antimagnetic case is constituted of two required-sized rectangular antimagnetic plates arranged side by side at a prescribed interval and stuck on a paper mount which is to be folded into half of width so that the surface with the plates faces outside and put in the plastic case. COPYRIGHT: (C)2004,JPO
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