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发明名称
摘要
申请公布号
JPH04134240(U)
申请公布日期
1992.12.14
申请号
JP19910072886U
申请日期
1991.06.04
申请人
发明人
分类号
B22C9/08;(IPC1-7):B22C9/08
主分类号
B22C9/08
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