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发明名称
REFLECTION TYPE DIFFRACTION GRATING
摘要
申请公布号
JPH01213599(A)
申请公布日期
1989.08.28
申请号
JP19880038521
申请日期
1988.02.23
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
UCHIUMI YUICHI;URISU TSUNEO
分类号
G21K1/06;G02B5/18
主分类号
G21K1/06
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代理人
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