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经营范围
发明名称
METHOD OF MAINTAINING RIVER WATERWAY IN OPERATING CONDITION
摘要
申请公布号
SU1723233(A1)
申请公布日期
1992.03.30
申请号
SU19904824304
申请日期
1990.05.07
申请人
NOVOSIBIRSKIJ INZH-STR I IM.V.V.KUJBYSHEVA
发明人
ROSHCHUPKIN DMITRIJ V,SU
分类号
E02B1/00;E02B15/00
主分类号
E02B1/00
代理机构
代理人
主权项
地址
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