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发明名称
SOIL INTAKE DEVICE FOR DREDGER
摘要
申请公布号
SU1721187(A2)
申请公布日期
1992.03.23
申请号
SU19904843988
申请日期
1990.06.28
申请人
NIZHEGORODSKIJ I INZHENEROV VODNOGO TRANSPORTA
发明人
AREFEV NIKOLAJ N,SU
分类号
E02F3/88
主分类号
E02F3/88
代理机构
代理人
主权项
地址
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