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发明名称
Combined receiver and transmitter
摘要
申请公布号
US1940881(A)
申请公布日期
1933.12.26
申请号
US19310516554
申请日期
1931.02.18
申请人
INTERNATIONAL COMMUNICATIONS LABORATORIES, INC.
发明人
PORTS EARL G.
分类号
H04B1/44
主分类号
H04B1/44
代理机构
代理人
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地址
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