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发明名称
LASER RETROREFLECTIVITY MEASURING APPARATUS AND METHOD
摘要
申请公布号
GB2173897(B)
申请公布日期
1989.04.19
申请号
GB19860009431
申请日期
1986.04.17
申请人
* POTTERS INDUSTRIES INC
发明人
ROBERT * DEJAIFFE
分类号
G01N21/47;G01N21/55
主分类号
G01N21/47
代理机构
代理人
主权项
地址
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