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发明名称
摘要
申请公布号	SU488654(A1)	申请公布日期	1975.10.25
申请号	SU19742039154	申请日期	1974.07.02
申请人		发明人
分类号	B22D15/04;(IPC1-7):B22D15/04	主分类号	B22D15/04
代理机构		代理人
主权项
地址

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