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经营范围
发明名称
Optical waveguide gratings
摘要
申请公布号
GB2281787(A)
申请公布日期
1995.03.15
申请号
GB19930018670
申请日期
1993.09.09
申请人
* NORTHERN TELECOM LIMITED
发明人
KEVIN CHRISTOPHER * BYRON
分类号
G02B27/44;(IPC1-7):G02B27/44
主分类号
G02B27/44
代理机构
代理人
主权项
地址
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