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经营范围
发明名称
Reactive silica powder
摘要
申请公布号
US2705222(A)
申请公布日期
1955.03.29
申请号
US19480058809
申请日期
1948.11.06
申请人
UNION CARBIDE AND CARBON CORPORATION
发明人
WAGNER GEORGE H.
分类号
B01J21/00;C01B33/18;C09C3/12
主分类号
B01J21/00
代理机构
代理人
主权项
地址
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