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发明名称
ALTSAND-REGENERIERVERFAHREN UND -VORRICHTUNG
摘要
申请公布号
DE2429169(B2)
申请公布日期
1977.12.22
申请号
DE19742429169
申请日期
1974.06.18
申请人
发明人
分类号
B22C5/18;(IPC1-7):B22C5/18
主分类号
B22C5/18
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代理人
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