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经营范围
发明名称
Process of treating clays
摘要
申请公布号
GB524487(A)
申请公布日期
1940.08.07
申请号
GB19390010029
申请日期
1939.03.30
申请人
WISCONSIN ALUMNI RESEARCH FOUNDATION
发明人
分类号
C04B33/13
主分类号
C04B33/13
代理机构
代理人
主权项
地址
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