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经营范围
发明名称
Improvements relating to mineral cement mixtures
摘要
申请公布号
GB391997(A)
申请公布日期
1933.05.11
申请号
GB19320016052
申请日期
1932.06.07
申请人
GEORGE EDWARD HEYL
发明人
分类号
C04B24/36
主分类号
C04B24/36
代理机构
代理人
主权项
地址
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