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发明名称
Wired radio service system
摘要
申请公布号
US2179612(A)
申请公布日期
1939.11.14
申请号
US19370161389
申请日期
1937.08.28
申请人
WIRED RADIO, INC.
发明人
BUTLER HENRY R.
分类号
H04H20/77;H04H20/84
主分类号
H04H20/77
代理机构
代理人
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地址
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