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发明名称
Perfectionnements aux dispositifs de signalisation par impulsions
摘要
申请公布号
FR1506788(A)
申请公布日期
1967.12.22
申请号
FR19660088889
申请日期
1966.12.27
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
BROWN THOMAS GUTHRIE
分类号
H04L12/52
主分类号
H04L12/52
代理机构
代理人
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