DRILLING MUD PREPARATION DEVICE,申请号SU19894671563-传众专利搜索

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发明名称	DRILLING MUD PREPARATION DEVICE
摘要
申请公布号	SU1677243(A1)	申请公布日期	1991.09.15
申请号	SU19894671563	申请日期	1989.02.27
申请人	FRYZ IVAN M,SU;VARENIK VALERIJ A,SU;LUKACH PETR M,SU;VOJTIV YAROSLAV,SU;YATSKIV IGOR G,SU	发明人	FRYZ IVAN M,SU;VARENIK VALERIJ A,SU;LUKACH PETR M,SU;VOJTIV YAROSLAV I,SU;YATSKIV IGOR G,SU
分类号	E21B21/06;E21B21/00	主分类号	E21B21/06
代理机构		代理人
主权项
地址

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