ГЕРМЕТИЗИРУЮЩИЙ УЗЕЛ ОПОРЫ ШАРОШЕЧНОГГО ДОЛОТА,申请号RU20040122203U-传众专利搜索

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发明名称	ГЕРМЕТИЗИРУЮЩИЙ УЗЕЛ ОПОРЫ ШАРОШЕЧНОГГО ДОЛОТА
摘要
申请公布号	RU42570(U1)	申请公布日期	2004.12.10
申请号	RU20040122203U	申请日期	2004.07.20
申请人		发明人
分类号	E21B10/22;(IPC1-7):E21B10/22	主分类号	E21B10/22
代理机构		代理人
主权项
地址

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