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发明名称
Способ защиты телефонных линий от индукции со стороны радиостанций
摘要
申请公布号
SU36483(A1)
申请公布日期
1934.05.31
申请号
SU19330138298
申请日期
1933.11.21
申请人
YAKOVLEV A.I.
发明人
YAKOVLEV A.I.
分类号
H04B3/28
主分类号
H04B3/28
代理机构
代理人
主权项
地址
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