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经营范围
发明名称
Noise suppressor
摘要
申请公布号
US2299390(A)
申请公布日期
1942.10.20
申请号
US19390299064
申请日期
1939.10.12
申请人
RADIO CORPORATION
发明人
HOLMES RALPH S.;MARTINELLI CIRO C.
分类号
H03G11/04
主分类号
H03G11/04
代理机构
代理人
主权项
地址
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