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发明名称
摘要
申请公布号
DE2125175(A1)
申请公布日期
1971.12.23
申请号
DE19712125175
申请日期
1971.05.21
申请人
发明人
分类号
B22D41/24;(IPC1-7):B22D/
主分类号
B22D41/24
代理机构
代理人
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地址
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