Устройство для очистки затрубного пространства добывающих скважин,申请号RU20030115520U-传众专利搜索

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发明名称	Устройство для очистки затрубного пространства добывающих скважин
摘要
申请公布号	RU33777(U1)	申请公布日期	2003.11.10
申请号	RU20030115520U	申请日期	2003.05.27
申请人		发明人
分类号	E21B37/00;E21B36/04	主分类号	E21B37/00
代理机构		代理人
主权项
地址

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