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发明名称
VERFAHREN ZUR HERSTELLUNG EINES ZEMENTZUSATZES
摘要
申请公布号
DD337694(A5)
申请公布日期
1992.05.07
申请号
DD19900337694
申请日期
1990.02.06
申请人
发明人
分类号
C04B22/00;(IPC1-7):C04B22/00
主分类号
C04B22/00
代理机构
代理人
主权项
地址
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