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发明名称
Data transmission systems
摘要
申请公布号
GB9801010(D0)
申请公布日期
1998.03.18
申请号
GB19980001010
申请日期
1998.01.16
申请人
FLIGHT REFUELLING LIMITED
发明人
分类号
E21B47/12;H04B13/02
主分类号
E21B47/12
代理机构
代理人
主权项
地址
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