Removable guide post,申请号GB19890027194-传众专利搜索

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发明名称	Removable guide post
摘要
申请公布号	GB2225798(A)	申请公布日期	1990.06.13
申请号	GB19890027194	申请日期	1989.12.01
申请人	* THE BRITISH PETROLEUM COMPANY P.L.C.	发明人	HANS PAUL * HOPPER
分类号	E21B41/04;E21B41/10	主分类号	E21B41/04
代理机构		代理人
主权项
地址

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