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发明名称
Устройство для измерения глубины промерзания грунта
摘要
申请公布号
SU66936(A1)
申请公布日期
1945.11.30
申请号
SU19450002642
申请日期
1945.08.15
申请人
BELOKRYLOV I.D.
发明人
BELOKRYLOV I.D.
分类号
G01N27/04
主分类号
G01N27/04
代理机构
代理人
主权项
地址
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