EXCAVATING PART OF DRAIN-TUBE LAYER,申请号SU19884430436-传众专利搜索

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发明名称	EXCAVATING PART OF DRAIN-TUBE LAYER
摘要
申请公布号	SU1663131(A1)	申请公布日期	1991.07.15
申请号	SU19884430436	申请日期	1988.05.26
申请人	TURKMENSKIJ POLT INSTITUT	发明人	TYURIN LEONID P,SU
分类号	E02F5/10	主分类号	E02F5/10
代理机构		代理人
主权项
地址

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