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经营范围
发明名称
High frequency electric signal conversion
摘要
申请公布号
GB1092407(A)
申请公布日期
1967.11.22
申请号
GB19650047253
申请日期
1965.11.08
申请人
ANDREW ALFORD
发明人
分类号
H01P5/10
主分类号
H01P5/10
代理机构
代理人
主权项
地址
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