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发明名称
Improvements in electric testing apparatus
摘要
申请公布号
GB347353(A)
申请公布日期
1931.04.30
申请号
GB19300004788
申请日期
1930.02.12
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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