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发明名称
Frequency response system
摘要
申请公布号
US2640922(A)
申请公布日期
1953.06.02
申请号
US19490106842
申请日期
1949.07.26
申请人
GENERAL ELECTRIC COMPANY
发明人
MCARTHUR ELMER D.
分类号
H03D9/04
主分类号
H03D9/04
代理机构
代理人
主权项
地址
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