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发明名称
Signal translating apparatus
摘要
申请公布号
US2269284(A)
申请公布日期
1942.01.06
申请号
US19370178802
申请日期
1937.12.08
申请人
RADIO CORPORATION
发明人
OLSON HARRY F.
分类号
H04R1/24;H04R9/06
主分类号
H04R1/24
代理机构
代理人
主权项
地址
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