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发明名称
Tape perforating system
摘要
申请公布号
US2352925(A)
申请公布日期
1944.07.04
申请号
US19430482553
申请日期
1943.04.10
申请人
RADIO CORPORATION OF AMERICA
发明人
WALKER WILLIAM EDWARD
分类号
H04L13/06
主分类号
H04L13/06
代理机构
代理人
主权项
地址
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