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发明名称
摘要
申请公布号	SU426834(A1)	申请公布日期	1974.05.05
申请号	SU19721825722	申请日期	1972.09.06
申请人		发明人
分类号	B28B3/12;B30B3/00;(IPC1-7):B28B3/12	主分类号	B28B3/12
代理机构		代理人
主权项
地址

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