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经营范围
发明名称
Gelatin silver halide compositions and elements containing a water-soluble hydroxyalkyl ether derivative of starch
摘要
申请公布号
US3152906(A)
申请公布日期
1964.10.13
申请号
US19620193653
申请日期
1962.05.07
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
OVERMAN JOSEPH DE WITT
分类号
G03C1/04
主分类号
G03C1/04
代理机构
代理人
主权项
地址
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