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经营范围
发明名称
RADIO AMPLIFIER
摘要
申请公布号
CA401777(A)
申请公布日期
1941.12.30
申请号
CAD401777
申请日期
申请人
CANADIAN GENERAL ELECTRIC COMPANY
发明人
ROBERT B. DOME
分类号
主分类号
代理机构
代理人
主权项
地址
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