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发明名称
EARTH-INTAKE DEVICE FOR SUCTION-TUBE DREDGE
摘要
申请公布号
SU1745832(A1)
申请公布日期
1992.07.07
申请号
SU19894649373
申请日期
1989.01.09
申请人
LE POLT I IM.M.I.KALININA
发明人
NGUEN VAN SH,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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