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经营范围
发明名称
Improvements in and relating to electrical measuring instruments
摘要
申请公布号
GB931521(A)
申请公布日期
1963.07.17
申请号
GB19580034704
申请日期
1958.10.29
申请人
JOHN RAWCLIFFE
发明人
分类号
G01R13/00
主分类号
G01R13/00
代理机构
代理人
主权项
地址
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