| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery allowing the replacement time of the battery in the course of use by being mounted to an electric appliance or an electronic apparatus to be easily confirmed. SOLUTION: This battery 10 has a body surface allowing a use starting month used as a sign of its replacement time to be indicated. The body surface is formed with a writing surface allowing the use starting month to be written with a pen or a pencil. COPYRIGHT: (C)2004,JPO
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