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本物品は、電力量計に取り付けることにより、電力量計に停電時表示機能を拡張することが可能な電力量計用電池ユニットである。This product is a battery unit for a watt hour meter that can extend a power failure display function to the watt hour meter by attaching it to the watt hour meter.
JP2021028044F2021-12-212021-12-21
Battery unit for electricity meter
ActiveJP1722759S
(en)