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发明名称
Electronic pulse filtering system
摘要
申请公布号
US2489297(A)
申请公布日期
1949.11.29
申请号
US19430488180
申请日期
1943.05.24
申请人
FEDERAL TELEPHONE AND RADIO CORPORATION
发明人
LABIN EMILE;GRIEG DONALD D.
分类号
H04J3/08
主分类号
H04J3/08
代理机构
代理人
主权项
地址
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