METHOD OF PREVENTING FREEZING OF OIL WELL OUTLET CONDUITS,申请号SU19874309429-传众专利搜索

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发明名称	METHOD OF PREVENTING FREEZING OF OIL WELL OUTLET CONDUITS
摘要
申请公布号	SU1499055(A1)	申请公布日期	1989.08.07
申请号	SU19874309429	申请日期	1987.09.24
申请人	DEGTYAREV VLADIMIR N,SU	发明人	DEGTYAREV VLADIMIR N,SU
分类号	F17D1/14;E21B43/00	主分类号	F17D1/14
代理机构		代理人
主权项
地址

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