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经营范围
发明名称
OPTICAL FILTER
摘要
申请公布号
GB2058389(A)
申请公布日期
1981.04.08
申请号
GB19800014333
申请日期
1980.04.30
申请人
HOYA CORP
发明人
分类号
G03B11/00;G02B7/00;G02B7/02;(IPC1-7):G02B7/00;G02B5/20
主分类号
G03B11/00
代理机构
代理人
主权项
地址
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