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经营范围
发明名称
ELECTRONIC CIRCUIT OF CONVERTING WATTMETER
摘要
申请公布号
PL140012(B1)
申请公布日期
1987.03.31
申请号
PL19830242939
申请日期
1983.07.07
申请人
发明人
分类号
G01R;G01R21/06;(IPC1-7):G01R21/06
主分类号
G01R
代理机构
代理人
主权项
地址
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