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经营范围
发明名称
Installation de séparation d'impulsions.
摘要
申请公布号
CH269950(A)
申请公布日期
1950.07.31
申请号
CHD269950
申请日期
1947.04.29
申请人
STANDARD TELEPHONE ET RADIO S. A.
发明人
STANDARD TELEPHONE ET RADIO S. A.
分类号
H04J3/04
主分类号
H04J3/04
代理机构
代理人
主权项
地址
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