FREMGANGSMAATE OG INNRETNING FOR REDUKSJON AV EN FELTFILTERKAKE PAA SVAMPKJERNER,申请号NO19840002853-传众专利搜索

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发明名称	FREMGANGSMAATE OG INNRETNING FOR REDUKSJON AV EN FELTFILTERKAKE PAA SVAMPKJERNER
摘要
申请公布号	NO842853(A)	申请公布日期	1985.02.26
申请号	NO19840002853	申请日期	1984.07.12
申请人	DIAMOND OIL WELL DRILLING COMP,	发明人	PARK, ARTHUR,;WILSON, BOBBY TALMA,
分类号	E21B25/08;(IPC1-7):E21B/	主分类号	E21B25/08
代理机构		代理人
主权项
地址

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