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经营范围
发明名称
CLAY TREATMENT
摘要
申请公布号
US3439802(A)
申请公布日期
1969.04.22
申请号
USD3439802
申请日期
1966.12.14
申请人
ENGELHARD MINERALS & CHEM. CORP.
发明人
MILLER B. MALLARY
分类号
B03D1/06;(IPC1-7):B03D1/00
主分类号
B03D1/06
代理机构
代理人
主权项
地址
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