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发明名称
High frequency signaling system
摘要
申请公布号
US2143722(A)
申请公布日期
1939.01.10
申请号
US19340709113
申请日期
1934.01.31
申请人
GENERAL ELECTRIC COMPANY
发明人
THOMAS HENRY P.
分类号
H03G3/26
主分类号
H03G3/26
代理机构
代理人
主权项
地址
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