ASSEMBLY FOR REDUCING THE FORCE APPLIED TO A SLOT AND LUG GUIDE,申请号EP19860308807-传众专利搜索

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发明名称	ASSEMBLY FOR REDUCING THE FORCE APPLIED TO A SLOT AND LUG GUIDE
摘要
申请公布号	EP0222620(A3)	申请公布日期	1989.03.22
申请号	EP19860308807	申请日期	1986.11.12
申请人	HALLIBURTON COMPANY	发明人	RINGGENBERG, PAUL DAVID
分类号	E21B23/00;E21B34/10;E21B49/00;(IPC1-7):E21B34/10	主分类号	E21B23/00
代理机构		代理人
主权项
地址

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