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发明名称
Signalling method
摘要
申请公布号
GB2407928(A)
申请公布日期
2005.05.11
申请号
GB20030026055
申请日期
2003.11.07
申请人
ERIC * ATHERTON;* PLUS DESIGN LIMITED
发明人
ERIC * ATHERTON
分类号
E21B47/12;G01V11/00;H03K7/06;H04B3/54;(IPC1-7):H03K9/00
主分类号
E21B47/12
代理机构
代理人
主权项
地址
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