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经营范围
发明名称
Protective circuit
摘要
申请公布号
US2843817(A)
申请公布日期
1958.07.15
申请号
US19550517733
申请日期
1955.06.24
申请人
RADIO CORPORATION OF AMERICA
发明人
LAPPIN LESTER S.
分类号
H03F1/54
主分类号
H03F1/54
代理机构
代理人
主权项
地址
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