ПЕРЕЛИВНОЙ КЛАПАН БУРИЛЬНОЙ КОЛОННЫ,申请号RU20030112758U-传众专利搜索

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发明名称	ПЕРЕЛИВНОЙ КЛАПАН БУРИЛЬНОЙ КОЛОННЫ
摘要
申请公布号	RU37135(U1)	申请公布日期	2004.04.10
申请号	RU20030112758U	申请日期	2003.04.29
申请人		发明人
分类号	E21B4/00	主分类号	E21B4/00
代理机构		代理人
主权项
地址

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