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发明名称
STRUCTURE FOR COUPLING OPTICAL CIRCUIT
摘要
申请公布号
JPH02244009(A)
申请公布日期
1990.09.28
申请号
JP19890063463
申请日期
1989.03.17
申请人
NEC CORP
发明人
KOYAMA MASARU
分类号
G02B6/32
主分类号
G02B6/32
代理机构
代理人
主权项
地址
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