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发明名称
Perfectionnements aux appareils télégraphiques perforateurs
摘要
申请公布号
FR1144963(A)
申请公布日期
1957.10.21
申请号
FRD1144963
申请日期
1956.03.30
申请人
CREED & COMPANY LIMITED
发明人
DREWELL WILLIAM BURNETT
分类号
H04L17/08
主分类号
H04L17/08
代理机构
代理人
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