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发明名称
Silica modified cement
摘要
申请公布号
US2410954(A)
申请公布日期
1946.11.12
申请号
US19440558463
申请日期
1944.10.12
申请人
PERMANENTE CEMENT COMPANY
发明人
SHARP JAMES WILLIAM
分类号
C04B18/14
主分类号
C04B18/14
代理机构
代理人
主权项
地址
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