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经营范围
发明名称
LOUVRED ECHELON LENS
摘要
申请公布号
GB1528929(A)
申请公布日期
1978.10.18
申请号
GB19750041098
申请日期
1975.10.07
申请人
MINNESOTA MINING & MFG CO
发明人
分类号
G02B3/08;G02B5/04;(IPC1-7):G02B3/08
主分类号
G02B3/08
代理机构
代理人
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