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经营范围
发明名称
Röhrenvoltmeter.
摘要
申请公布号
CH232156(A)
申请公布日期
1944.05.15
申请号
CHD232156
申请日期
1943.02.10
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
GLOEILAMPENFABRIEKEN N. V. PHILIPS'
分类号
G01R17/16
主分类号
G01R17/16
代理机构
代理人
主权项
地址
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