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发明名称
摘要
申请公布号
BE659689(A)
申请公布日期
1965.05.28
申请号
BE19650659689
申请日期
1965.02.12
申请人
发明人
分类号
B22C23/02;B22D7/10;B22D11/059;B22D41/02
主分类号
B22C23/02
代理机构
代理人
主权项
地址
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