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发明名称
Signal transmission system
摘要
申请公布号
US2019594(A)
申请公布日期
1935.11.05
申请号
US19330681514
申请日期
1933.07.21
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
BLACK KNOX C.
分类号
H04B3/10
主分类号
H04B3/10
代理机构
代理人
主权项
地址
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