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发明名称
OPTICAL WAVEGUIDE GRATINGS
摘要
申请公布号
GB9318670(D0)
申请公布日期
1993.10.27
申请号
GB19930018670
申请日期
1993.09.09
申请人
NORTHERN TELECOM LIMITED
发明人
分类号
G02B27/44
主分类号
G02B27/44
代理机构
代理人
主权项
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