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经营范围
发明名称
LIGHT VARIABLE WAVELENGTH FILTER
摘要
申请公布号
JPH04168416(A)
申请公布日期
1992.06.16
申请号
JP19900296021
申请日期
1990.10.31
申请人
NEC CORP
发明人
NISHIO MAKOTO
分类号
G02F1/035
主分类号
G02F1/035
代理机构
代理人
主权项
地址
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