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经营范围
发明名称
Burnish gold
摘要
申请公布号
US2383704(A)
申请公布日期
1945.08.28
申请号
US19440519351
申请日期
1944.01.22
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
BALLARD KERMIT H.
分类号
C09C1/62
主分类号
C09C1/62
代理机构
代理人
主权项
地址
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