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发明名称
REFLEKTERENDE ARK
摘要
申请公布号
DK519777(A)
申请公布日期
1978.05.27
申请号
DK19770005197
申请日期
1977.11.23
申请人
MINNESOTA MINING
发明人
BROWN R A
分类号
E01F9/08;G02B5/12;G02B5/128;G06K19/14;G09F13/16;(IPC1-7):G02B/
主分类号
E01F9/08
代理机构
代理人
主权项
地址
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