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发明名称
Electronic valve circuits
摘要
申请公布号
US2651717(A)
申请公布日期
1953.09.08
申请号
US19500167662
申请日期
1950.06.12
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
UTTLEY ALBERT M.;NOBLE SPENCER W.;BANNISTER LAWRENCE H.;ORD GEOFFREY
分类号
H03F1/36;H03K3/04;H03K3/13;H03K21/00
主分类号
H03F1/36
代理机构
代理人
主权项
地址
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