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经营范围
发明名称
OPTICAL FIBRE COUPLERS
摘要
申请公布号
GB8306773(D0)
申请公布日期
1983.04.20
申请号
GB19830006773
申请日期
1983.03.11
申请人
BRITISH TELECOMMUNICATIONS
发明人
分类号
G01N21/45;(IPC1-7):G01N21/45
主分类号
G01N21/45
代理机构
代理人
主权项
地址
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