ROERSKJOET,申请号NO19840003648-传众专利搜索

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发明名称	ROERSKJOET
摘要
申请公布号	NO843648(A)	申请公布日期	1984.09.14
申请号	NO19840003648	申请日期	1984.09.14
申请人	HYDRIL COMP,	发明人	BLOSE, THOMAS L.,;CHELETTE, K. DARREL,;ORTLOFF, DONALD J.,;REEVES, DOYLE E.,
分类号	E21B17/042;F16L;F16L15/00;(IPC1-7):F16L/	主分类号	E21B17/042
代理机构		代理人
主权项
地址

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