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发明名称	Пакер
摘要
申请公布号	RU31603(U1)	申请公布日期	2003.08.20
申请号	RU20030103571U	申请日期	2003.02.11
申请人		发明人
分类号	E21B33/12	主分类号	E21B33/12
代理机构		代理人
主权项
地址

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