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发明名称
摘要
申请公布号
BE851421(A2)
申请公布日期
1977.08.16
申请号
BE19771007943
申请日期
1977.02.15
申请人
发明人
分类号
B22D29/00;B22C5/08;B22D31/00;B22D45/00;F26B11/02;F26B11/04;(IPC1-7):B01J/
主分类号
B22D29/00
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代理人
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