METHOD AND DEVICE FOR PLACING DRAINAGE,申请号SU19894721895-传众专利搜索

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发明名称	METHOD AND DEVICE FOR PLACING DRAINAGE
摘要
申请公布号	SU1652442(A1)	申请公布日期	1991.05.30
申请号	SU19894721895	申请日期	1989.06.19
申请人	KALININSKIJ POLT INSTITUT	发明人	VTOROV ALEKSEJ G,SU;SHPYNEV VADIM M,SU
分类号	E02F3/06	主分类号	E02F3/06
代理机构		代理人
主权项
地址

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