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发明名称
COUPLER TYPE OPTICAL FILTER
摘要
申请公布号
JPH0667054(A)
申请公布日期
1994.03.11
申请号
JP19920217995
申请日期
1992.08.17
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
MIKAWA IZUMI;OYAMADA YAHEI;FURUKAWA SHINICHI;IZUMIDA CHIKASHI
分类号
G02B6/28;(IPC1-7):G02B6/28
主分类号
G02B6/28
代理机构
代理人
主权项
地址
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