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发明名称
Electric delay lines
摘要
申请公布号
US2813255(A)
申请公布日期
1957.11.12
申请号
US19540414814
申请日期
1954.03.08
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
WILLIAMS FREDERIC CALLAND;KILBURN TOM;EDWARDS DAVID BEVERLEY GEORGE;THOMAS GORDON ERIC
分类号
H01J19/00;H03H7/34
主分类号
H01J19/00
代理机构
代理人
主权项
地址
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