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经营范围
发明名称
Improvements in or relating to telegraph apparatus
摘要
申请公布号
GB540033(A)
申请公布日期
1941.10.02
申请号
GB19400009865
申请日期
1940.06.05
申请人
CABLE AND WIRELESS LIMITED;FRED WARBURTON
发明人
分类号
H04L13/10;H04L15/34
主分类号
H04L13/10
代理机构
代理人
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地址
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