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发明名称
Устройство для вычерчивания профиля русла рек
摘要
申请公布号
SU12815(A1)
申请公布日期
1930.01.31
申请号
SUD12815
申请日期
1928.07.25
申请人
KLEVEZAL A.P.
发明人
KLEVEZAL A.P.
分类号
G01C13/00;G01C7/04
主分类号
G01C13/00
代理机构
代理人
主权项
地址
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