DRILL PIPE TUBING & CASING PROTECTORS,申请号GB19870012024-传众专利搜索

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发明名称	DRILL PIPE TUBING & CASING PROTECTORS
摘要
申请公布号	GB8712024(D0)	申请公布日期	1987.06.24
申请号	GB19870012024	申请日期	1987.05.21
申请人	LLOYD, S F;HERRERA, G M	发明人
分类号	E21B17/10	主分类号	E21B17/10
代理机构		代理人
主权项
地址

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