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经营范围
发明名称
SUCTION-TUBE DREDGE
摘要
申请公布号
SU1670048(A1)
申请公布日期
1991.08.15
申请号
SU19894740268
申请日期
1989.09.25
申请人
KRYUCHKOV OLEG S,SU
发明人
KRYUCHKOV OLEG S,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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