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发明名称
Прибор для определения места повреждения трубопровода
摘要
申请公布号
SU54723(A1)
申请公布日期
1938.11.30
申请号
SUD54723
申请日期
1937.10.09
申请人
RAZUVANOV N.YA.
发明人
RAZUVANOV N.YA.
分类号
F17D5/02
主分类号
F17D5/02
代理机构
代理人
主权项
地址
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