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发明名称
Filament supply system for vibrator operated receivers
摘要
申请公布号
US2113139(A)
申请公布日期
1938.04.05
申请号
US19360068668
申请日期
1936.03.13
申请人
RADIO CORPORATION OF AMERICA
发明人
HOLST POUL F. G.
分类号
H02M7/62
主分类号
H02M7/62
代理机构
代理人
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地址
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