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发明名称
Perfectionnements dans les systèmes de communications électriques ou se rapportant à ces systèmes
摘要
申请公布号
FR1082747(A)
申请公布日期
1954.12.31
申请号
FRD1082747
申请日期
1953.05.21
申请人
发明人
GILMOOR ABRAHAM
分类号
H04M1/26;H04Q9/00
主分类号
H04M1/26
代理机构
代理人
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