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发明名称
Transmission of related radiant frequencies
摘要
申请公布号
US2018356(A)
申请公布日期
1935.10.22
申请号
US19290405873
申请日期
1929.11.09
申请人
HAMMOND JR JOHN HAYS
发明人
JR. JOHN HAYS HAMMOND,
分类号
H04J1/00
主分类号
H04J1/00
代理机构
代理人
主权项
地址
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