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发明名称	SAMPLER
摘要
申请公布号	SU1634775(A1)	申请公布日期	1991.03.15
申请号	SU19894663694	申请日期	1989.03.17
申请人	DO POLT INSTITUT	发明人	RAVILOV ISMAIL V,SU;TURYANSKIJ ALEKSANDR A,SU
分类号	E21B25/18	主分类号	E21B25/18
代理机构		代理人
主权项
地址

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