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发明名称
Способ включения электронных ламп питанием цепей накала анодным током этих же ламп
摘要
申请公布号
SU83448(A1)
申请公布日期
1949.11.30
申请号
SU19480374433
申请日期
1948.02.24
申请人
NANOS A.M.
发明人
NANOS A.M.
分类号
H03F3/02
主分类号
H03F3/02
代理机构
代理人
主权项
地址
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