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发明名称
Improvements in or relating to communication systems
摘要
申请公布号
GB883688(A)
申请公布日期
1961.12.06
申请号
GB19580007629
申请日期
1958.03.10
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
H02J13/00
主分类号
H02J13/00
代理机构
代理人
主权项
地址
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