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发明名称
APPARATUS FOR MAINTAINING WATERWAY IN UNFROZEN STATE
摘要
申请公布号
SU1420112(A1)
申请公布日期
1988.08.30
申请号
SU19864081471
申请日期
1986.04.16
申请人
NOVOSIBIRSKIJ INZH-STR I IM.V.V.KUJBYSHEVA;NOVOSIBIRSK VNII TRANSP
发明人
POPOV YURIJ A,SU;ROSHCHUPKIN DMITRIJ V,SU;SEMENOV VLADIMIR L,SU;TURIK IVAN G,SU;ALTFATER EDUARD V,SU
分类号
E02B15/02
主分类号
E02B15/02
代理机构
代理人
主权项
地址
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