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经营范围
发明名称
HOLLOW GLASS WAVEGUIDE
摘要
申请公布号
GB8923237(D0)
申请公布日期
1989.12.06
申请号
GB19890023237
申请日期
1989.02.24
申请人
COGENT LIMITED
发明人
分类号
G02B6/00;C03C13/04;G02B6/032;(IPC1-7):E04C3/292
主分类号
G02B6/00
代理机构
代理人
主权项
地址
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