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发明名称
DIFFRACTION GRATING ASSEMBLY
摘要
申请公布号
GB8919220(D0)
申请公布日期
1989.10.04
申请号
GB19890019220
申请日期
1989.08.24
申请人
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人
分类号
G02B5/18;H01S3/1055
主分类号
G02B5/18
代理机构
代理人
主权项
地址
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