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经营范围
发明名称
Watt-hour meter
摘要
申请公布号
GB2157448(A)
申请公布日期
1985.10.23
申请号
GB19840009221
申请日期
1984.04.10
申请人
* CHEN YU;* YUNG-HO LIU
发明人
* CHEN YU;* YUNG-HO LIU
分类号
G01R21/133
主分类号
G01R21/133
代理机构
代理人
主权项
地址
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