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发明名称
IMPROVED TESTING FOR LEAD
摘要
申请公布号
GB8905316(D0)
申请公布日期
1989.04.19
申请号
GB19890005316
申请日期
1989.03.08
申请人
ASHTON, KENNETH F
发明人
分类号
G01N31/22
主分类号
G01N31/22
代理机构
代理人
主权项
地址
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