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发明名称
OPTICAL CIRCULATOR
摘要
申请公布号
JPH04310915(A)
申请公布日期
1992.11.02
申请号
JP19910077482
申请日期
1991.04.10
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
FUJII YOJI
分类号
G02B27/28
主分类号
G02B27/28
代理机构
代理人
主权项
地址
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