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发明名称
Improvements in or relating to modulators for carrier telegraph systems
摘要
申请公布号
GB649312(A)
申请公布日期
1951.01.24
申请号
GB19480023224
申请日期
1948.09.03
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
HARGREAVES THOMAS FREDERICK STANLEY
分类号
H04L27/04
主分类号
H04L27/04
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代理人
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