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经营范围
发明名称
Parametric amplifier tube
摘要
申请公布号
US3179895(A)
申请公布日期
1965.04.20
申请号
US19600074084
申请日期
1960.12.06
申请人
ZENITH RADIO CORPORATION
发明人
ADLER ROBERT;COHOON ROBERT L.
分类号
H01J25/49
主分类号
H01J25/49
代理机构
代理人
主权项
地址
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