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发明名称
Прибор для определения угла естественного откоса сыпучих тел
摘要
申请公布号
SU33721(A1)
申请公布日期
1933.12.31
申请号
SU19320112641
申请日期
1932.07.15
申请人
TIMOFEEV A.N.
发明人
TIMOFEEV A.N.
分类号
G01B5/24
主分类号
G01B5/24
代理机构
代理人
主权项
地址
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