DEVICE FOR REMOVAL OF WELL MUD CAKE,申请号SU19904891406-传众专利搜索

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发明名称	DEVICE FOR REMOVAL OF WELL MUD CAKE
摘要
申请公布号	RU1802094(C)	申请公布日期	1993.03.15
申请号	SU19904891406	申请日期	1990.12.13
申请人	PK KONTORA PROEKTNO-STROITELNOGO OBEDINENIYA "VOSTOKBURVOD"	发明人	DEREVYANNYKH ARKADIJ I,SU
分类号	E21B37/08;E21B43/10	主分类号	E21B37/08
代理机构		代理人
主权项
地址

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