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经营范围
发明名称
Elektrodesystem med Selenelektrode.
摘要
申请公布号
DK52008(C)
申请公布日期
1936.08.10
申请号
DKD52008
申请日期
1935.12.09
申请人
N. V. PHILIP'S GLOEILAMPENFABRIEKEN
发明人
分类号
B21D17/04
主分类号
B21D17/04
代理机构
代理人
主权项
地址
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