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发明名称
摘要
申请公布号
JPH03116251(U)
申请公布日期
1991.12.02
申请号
JP19900025787U
申请日期
1990.03.13
申请人
发明人
分类号
B22D17/02;(IPC1-7):B22D17/02
主分类号
B22D17/02
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代理人
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