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发明名称	FILTER
摘要
申请公布号	SU1289983(A1)	申请公布日期	1987.02.15
申请号	SU19853884302	申请日期	1985.04.09
申请人	MO GEOLOGORAZVEDOCHNYJ I IM.SERGO ORDZHONIKIDZE	发明人	FONBERSHTEJN EFIM G,SU;EKOMASOV SERGEJ P,SU;PODMARKOV OLEG V,SU;SHALASHOV GENNADIJ M,SU;CHEREPOVITSKIJ VLADIMIR A,SU
分类号	E21B43/08	主分类号	E21B43/08
代理机构		代理人
主权项
地址

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