| 发明名称 |
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| 摘要 |
PURPOSE:To detect the drop in battery voltage by disposing polarizing plate to a member driven by a wheel train and a hole provided to an external part respectively and visually observing the light transmitting through these polarizing plates. |
| 申请公布号 |
JPS5912153(B2) |
申请公布日期 |
1984.03.21 |
| 申请号 |
JP19760063699 |
申请日期 |
1976.06.01 |
| 申请人 |
SEIKOO DENSHI KOGYO KK |
发明人 |
NAKAO HIDEYUKI;KASAI YASUHIRO;IKEHATA YUKIO;OBARA NOBUO;MASUDA SHIGEYUKI;NISHIDA ISAMU |
| 分类号 |
H01M6/50;G04B45/02;G04C10/04 |
主分类号 |
H01M6/50 |
| 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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