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发明名称
Electrical meter
摘要
申请公布号
US1901921(A)
申请公布日期
1933.03.21
申请号
US19300455272
申请日期
1930.05.24
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
MEANS WINTHROP J.
分类号
G01R13/04
主分类号
G01R13/04
代理机构
代理人
主权项
地址
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