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发明名称
Système de télégraphie multiplex
摘要
申请公布号
FR994049(A)
申请公布日期
1951.11.09
申请号
FRD994049
申请日期
1944.12.12
申请人
LE MATERIEL TELEPHONIQUE
发明人
LAIR JEAN-BAPTISTE
分类号
H04J3/16;H04L5/22
主分类号
H04J3/16
代理机构
代理人
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地址
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