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发明名称
Process for treating siliceous materials
摘要
申请公布号
US2038399(A)
申请公布日期
1936.04.21
申请号
US19310535193
申请日期
1931.05.05
申请人
WESTBY GEORGE C
发明人
WESTBY GEORGE C.
分类号
C01G45/00;C22B47/00
主分类号
C01G45/00
代理机构
代理人
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