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经营范围
发明名称
Improvement in electrical testing apparatus
摘要
申请公布号
GB468138(A)
申请公布日期
1937.06.30
申请号
GB19350027118
申请日期
1935.10.01
申请人
NATIONAL TECHNICAL LABORATORIES
发明人
分类号
G01N27/30
主分类号
G01N27/30
代理机构
代理人
主权项
地址
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