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发明名称
Verfahren zur Herstellung hohler Sandkerne fuer Metallguss
摘要
申请公布号
DE527222(C)
申请公布日期
1931.06.15
申请号
DE1928I034944D
申请日期
1928.07.12
申请人
I.G. FARBENINDUSTRIE AKT.-GES.
发明人
分类号
B22C13/08
主分类号
B22C13/08
代理机构
代理人
主权项
地址
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