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发明名称
摘要
申请公布号	SU555989(A1)	申请公布日期	1977.04.30
申请号	SU19752099633	申请日期	1975.01.27
申请人		发明人
分类号	B22F3/17;B22F3/14;(IPC1-7):B22F3/14	主分类号	B22F3/17
代理机构		代理人
主权项
地址

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