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发明名称
摘要
申请公布号
FR2043660(A1)
申请公布日期
1971.02.19
申请号
FR19700018918
申请日期
1970.05.25
申请人
USS ENGINEERS CONSULTANT,US
发明人
分类号
B22D37/00;B22D11/10;B22D41/24;(IPC1-7):B22D41/00
主分类号
B22D37/00
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