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发明名称
Vielfachträgerfrequenzsystem über Kabel.
摘要
申请公布号
AT149293(B)
申请公布日期
1937.04.10
申请号
ATD149293
申请日期
1936.04.30
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
C21D9/00;H04B3/00;H04J1/04;H04J1/12
主分类号
C21D9/00
代理机构
代理人
主权项
地址
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