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发明名称
摘要
申请公布号	BE664874(A)	申请公布日期	1965.12.03
申请号	BED664874	申请日期	1965.06.03
申请人		发明人
分类号	E02F3/10;E02F3/14;E21C47/00;E21C47/10	主分类号	E02F3/10
代理机构		代理人
主权项
地址

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