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发明名称
Verfahren zur Herstellung von kalziumsulfathaltigen Zementen
摘要
申请公布号
DE749705(C)
申请公布日期
1944.12.01
申请号
DE1938S131681D
申请日期
1938.04.14
申请人
发明人
分类号
C04B7/21
主分类号
C04B7/21
代理机构
代理人
主权项
地址
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