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经营范围
发明名称
IMPROVEMENTS IN OR RELATING TO DISTRIBUTED AMPLIFIER TUBES
摘要
申请公布号
GB1223018(A)
申请公布日期
1971.02.17
申请号
GB19680055488
申请日期
1968.11.22
申请人
MATSUSHITA ELECTRIC INDUSTRIAL CO. LTD.
发明人
分类号
H03F1/20
主分类号
H03F1/20
代理机构
代理人
主权项
地址
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