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经营范围
发明名称
Scale removal, ferrous metal passivation and compositions therefor
摘要
申请公布号
USRE30796(E)
申请公布日期
1981.11.17
申请号
US19780942212
申请日期
1978.09.14
申请人
发明人
分类号
C02F5/12;C23G1/19;F02B77/04
主分类号
C02F5/12
代理机构
代理人
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