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发明名称
Installations de télécommunication en particulier dans les installations téléphoniques
摘要
申请公布号
FR1137279(A)
申请公布日期
1957.05.27
申请号
FRD1137279
申请日期
1955.03.26
申请人
SIEMENS & HALSKE A. G.
发明人
分类号
H04M1/515;H04Q3/00
主分类号
H04M1/515
代理机构
代理人
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