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经营范围
发明名称
BEAM TRAVELLING WAVE AMPLIFIER TUBE
摘要
申请公布号
CA546062(A)
申请公布日期
1957.09.10
申请号
CAD546062
申请日期
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
ANDRE G. CLAVIER
分类号
主分类号
代理机构
代理人
主权项
地址
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