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发明名称
OPTICAL FIBRE CABLE
摘要
申请公布号
GB8518682(D0)
申请公布日期
1985.08.29
申请号
GB19850018682
申请日期
1985.07.24
申请人
STC PLC
发明人
分类号
E21B17/20;E21B47/12;G02B6/44
主分类号
E21B17/20
代理机构
代理人
主权项
地址
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