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发明名称
Transceiver circuit arrangement
摘要
申请公布号
US2477039(A)
申请公布日期
1949.07.26
申请号
US19470726991
申请日期
1947.02.07
申请人
HARTFORD NATIONAL BANK AND TRUST COMPANY
发明人
BRAAK DIRK JOHAN
分类号
H03J7/00;H03J7/02;H04B1/44;H04B1/54
主分类号
H03J7/00
代理机构
代理人
主权项
地址
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