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发明名称
Машина для углубления рек
摘要
申请公布号
SU74974(A1)
申请公布日期
1948.11.30
申请号
SU19470356750
申请日期
1947.07.01
申请人
BOLGOV A.E.
发明人
BOLGOV A.E.
分类号
E02F5/28
主分类号
E02F5/28
代理机构
代理人
主权项
地址
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