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经营范围
发明名称
Differential refractometer
摘要
申请公布号
US2612814(A)
申请公布日期
1952.10.07
申请号
US19480029279
申请日期
1948.05.26
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
GLASSER LEO G.
分类号
G01N21/41
主分类号
G01N21/41
代理机构
代理人
主权项
地址
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