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发明名称
Perfectionnements aux systèmes télégraphiques ou transmetteurs de signaux analogues
摘要
申请公布号
FR945227(A)
申请公布日期
1949.04.28
申请号
FRD945227
申请日期
1947.04.16
申请人
发明人
HYDE GILBERT ANTHONY MULLINS
分类号
H04L13/14;H04L25/45
主分类号
H04L13/14
代理机构
代理人
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