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经营范围
发明名称
Symmetrical projection lens
摘要
申请公布号
GB1118931(A)
申请公布日期
1968.07.03
申请号
GB19650030142
申请日期
1965.07.15
申请人
MINNESCTA MINING AND MANUFACTURING COMPANY
发明人
分类号
G02B13/00
主分类号
G02B13/00
代理机构
代理人
主权项
地址
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