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经营范围
发明名称
Process of treating zinc sulphide or zinc oxide pigment
摘要
申请公布号
US2021990(A)
申请公布日期
1935.11.26
申请号
US19330676590
申请日期
1933.06.19
申请人
AMERICAN ZINC, LEAD & SMELTING COMPANY
发明人
DEPEW HARLAN A.
分类号
C09C1/04;C09C1/06
主分类号
C09C1/04
代理机构
代理人
主权项
地址
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