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发明名称
Verfahren zum Reduzieren von Gips
摘要
申请公布号
DE490886(C)
申请公布日期
1931.05.19
申请号
DE1927P056030D
申请日期
1927.09.07
申请人
G. POLYSIUS A.-G.
发明人
分类号
C04B7/04
主分类号
C04B7/04
代理机构
代理人
主权项
地址
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