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经营范围
发明名称
Perfectionnements aux systèmes d'antennes directionnels
摘要
申请公布号
FR943300(A)
申请公布日期
1949.03.03
申请号
FRD943300
申请日期
1947.03.14
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED
发明人
分类号
G01S1/02
主分类号
G01S1/02
代理机构
代理人
主权项
地址
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