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发明名称
METHOD OF MULTI-LEVEL METAL CASTING UNDER LOW PRESSURE, DEVICE FOR MULTI-LEVEL CASTING METAL CASTING UNDER LOW PRESSURE, MOULD FOR MULTI-LEVEL METAL CASTING UNDER LOW PRESSURE
摘要
申请公布号
PL290755(A1)
申请公布日期
1992.02.24
申请号
PL19910290755
申请日期
1991.06.20
申请人
PONT A MOUSSON
发明人
分类号
B22C9/02;B22C9/08;B22C9/20;B22D18/04;(IPC1-7):B22D18/04
主分类号
B22C9/02
代理机构
代理人
主权项
地址
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