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发明名称
Signal conversion system
摘要
申请公布号
US2587006(A)
申请公布日期
1952.02.26
申请号
US19470788511
申请日期
1947.11.28
申请人
RADIO CORPORATION
发明人
SMITH JOHN PAUL
分类号
H04N11/22
主分类号
H04N11/22
代理机构
代理人
主权项
地址
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