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发明名称
Cement compositions
摘要
申请公布号
US2433450(A)
申请公布日期
1947.12.30
申请号
US19450574440
申请日期
1945.01.24
申请人
PERMANENTE CEMENT COMPANY
发明人
GRANT RICHARD H.
分类号
C04B28/04
主分类号
C04B28/04
代理机构
代理人
主权项
地址
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