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经营范围
发明名称
SIGNAL TRANSLATING SYSTEM
摘要
申请公布号
US3420954(A)
申请公布日期
1969.01.07
申请号
USD3420954
申请日期
1961.08.25
申请人
RADIO CORP. OF AMERICA
发明人
HENRY M. BACH JR.
分类号
H03D1/22;H03F3/02;H04S1/00;H04S7/00;(IPC1-7):H04M1/00;H03F3/00;H03F3/68
主分类号
H03D1/22
代理机构
代理人
主权项
地址
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