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发明名称
Modulation system
摘要
申请公布号
US1945630(A)
申请公布日期
1934.02.06
申请号
US19320609358
申请日期
1932.05.05
申请人
WIRED RADIO, INC.
发明人
JR. ROBERT D. DUNCAN,
分类号
H03C1/16
主分类号
H03C1/16
代理机构
代理人
主权项
地址
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