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发明名称
Fernmeldekabel mit zusätzlichen Sprechkreisen.
摘要
申请公布号
AT127275(B)
申请公布日期
1932.03.10
申请号
ATD127275
申请日期
1930.03.20
申请人
SIEMENS-SCHUCKERTWERKE AKTIENGESELLSCHAFT
发明人
分类号
主分类号
代理机构
代理人
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