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发明名称
Data transmission system
摘要
申请公布号
US2705795(A)
申请公布日期
1955.04.05
申请号
US19490103283
申请日期
1949.07.06
申请人
BERT FISK;SPENCER CHARLES L
发明人
FISK BERT;SPENCER CHARLES L.
分类号
H04B7/005
主分类号
H04B7/005
代理机构
代理人
主权项
地址
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