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经营范围
发明名称
Photoelectric trend detector
摘要
申请公布号
GB948989(A)
申请公布日期
1964.02.05
申请号
GB19620004173
申请日期
1962.02.02
申请人
THE DOW CHEMICAL COMPANY
发明人
分类号
G01N3/06;G01N3/12
主分类号
G01N3/06
代理机构
代理人
主权项
地址
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