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经营范围
发明名称
Двухтактный кенотронный вольтметр
摘要
申请公布号
SU27730(A1)
申请公布日期
1932.09.30
申请号
SU19300071668
申请日期
1930.06.02
申请人
PANFILOV S.I.
发明人
PANFILOV S.I.
分类号
G01R19/00
主分类号
G01R19/00
代理机构
代理人
主权项
地址
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