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经营范围
发明名称
Gleichstromtransformator
摘要
申请公布号
DE694239(C)
申请公布日期
1940.07.27
申请号
DE193400T4218D
申请日期
1934.07.18
申请人
TELEFONAKTIEBOLAGET L. M. ERICSSON
发明人
分类号
H02M3/34
主分类号
H02M3/34
代理机构
代理人
主权项
地址
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