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发明名称
ARTIGO RETRORREFLEXIVO
摘要
申请公布号
BR8706289(A)
申请公布日期
1988.06.28
申请号
BR1987PI06289
申请日期
1987.11.20
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
ROGER H. APPELDORN;JOHN C. NELSON
分类号
G02B5/124;(IPC1-7):G02B5/124
主分类号
G02B5/124
代理机构
代理人
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