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发明名称
摘要
申请公布号
DE2215686(A1)
申请公布日期
1972.12.07
申请号
DE19722215686
申请日期
1972.03.30
申请人
BERGBAU U HUETTENKOMBINAT ALBE
发明人
分类号
B22F3/12;B22F3/14;C22C1/08;C22C1/10;C22C32/00;H01H1/023;H01H1/0237;(IPC1-7):B22F3/12
主分类号
B22F3/12
代理机构
代理人
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