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发明名称
Glühkathodengleichrichter.
摘要
申请公布号
CH143506(A)
申请公布日期
1930.11.15
申请号
CHD143506
申请日期
1929.10.14
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
AKTIENGESELLSCHAFT SIEMENS & HALSKE
分类号
主分类号
代理机构
代理人
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