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经营范围
发明名称
Reperforator
摘要
申请公布号
US2492503(A)
申请公布日期
1949.12.27
申请号
US19470728850
申请日期
1947.02.15
申请人
RADIO CORPORATION OF AMERICA
发明人
SPENCER JAMES A.;MERSON THOMAS J.;THOMAS LEWIS A.
分类号
H04L15/32
主分类号
H04L15/32
代理机构
代理人
主权项
地址
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