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发明名称
摘要
申请公布号
DD111420(A5)
申请公布日期
1975.02.12
申请号
DD19740178079
申请日期
1974.04.23
申请人
发明人
分类号
B22D11/10;B22D1/00;B22D11/01;B22D11/11;B22D11/112;B22D11/116;B22D11/117;B22D27/20;C22C1/00;C22C1/02;D06C21/00;(IPC1-7):D06C21/00
主分类号
B22D11/10
代理机构
代理人
主权项
地址
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