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发明名称
Method of improving the properties of portland cements
摘要
申请公布号
US1791684(A)
申请公布日期
1931.02.10
申请号
US19280305329
申请日期
1928.09.11
申请人
I. G. FARBENINDUSTRIE AKTIENGESELLSCHAFT
发明人
REUBKE EMIL
分类号
C04B22/14
主分类号
C04B22/14
代理机构
代理人
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地址
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