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发明名称
摘要
申请公布号
PL220851(A1)
申请公布日期
1982.01.04
申请号
PL19790220851
申请日期
1979.12.27
申请人
BIURO P PRZEMYSLU METAL
发明人
WYRWALA ANTONI
分类号
B22D;(IPC1-7):B22D/
主分类号
B22D
代理机构
代理人
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