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发明名称
VORRICHTUNG ZUR WIEDERNUTZBARMACHUNG VON FORMSAND
摘要
申请公布号
DD335148(A5)
申请公布日期
1992.05.07
申请号
DD19890335148
申请日期
1989.11.30
申请人
发明人
分类号
B22C5/00;B22C5/04;B22C5/18;(IPC1-7):B22C5/00
主分类号
B22C5/00
代理机构
代理人
主权项
地址
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