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发明名称
Устройство для измерения естественных разностей потенциалов вдоль трубопроводов
摘要
申请公布号
SU57896(A1)
申请公布日期
1939.11.30
申请号
SU19390025183
申请日期
1939.07.01
申请人
KOZIN K.P.
发明人
KOZIN K.P.
分类号
F16L58/00;F17D3/00;G01M3/28
主分类号
F16L58/00
代理机构
代理人
主权项
地址
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