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发明名称
摘要
申请公布号
FR2220332(A1)
申请公布日期
1974.10.04
申请号
FR19740007627
申请日期
1974.03.06
申请人
SUMITOMO METAL IND LTD,JA
发明人
分类号
B22D11/16;B22D11/18;B22D37/00;(IPC1-7):B22D11/10;B22D39/00
主分类号
B22D11/16
代理机构
代理人
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地址
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