JIG FOR REINFORCING WELLHEAD WHILE DRILLING,申请号SU19823497958-传众专利搜索

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发明名称	JIG FOR REINFORCING WELLHEAD WHILE DRILLING
摘要
申请公布号	SU1089225(A1)	申请公布日期	1984.04.30
申请号	SU19823497958	申请日期	1982.10.14
申请人	VNI PK I PO OSUSHENIYU MESTOROZHDENIJ POLEZNYKH ISKOPAEMYKH, CüE\|ôAóÓHÕM ×OPHÕM PA¬OTAM, PÔ¯HôÚHOö ×EOóO×ôô ô MAPKÛEö¯EPCKOMÔ ¯EóÔ	发明人	LOBANOV VLADIMIR V,SU
分类号	E21B7/24;(IPC1-7):E21B7/24	主分类号	E21B7/24
代理机构		代理人
主权项
地址

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