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发明名称
Installation de transmission de signaux électriques
摘要
申请公布号
FR938543(A)
申请公布日期
1948.10.18
申请号
FRD938543
申请日期
1946.12.21
申请人
WESTERN ELECTRIC COMPANY INCORPORATED
发明人
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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