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经营范围
发明名称
Improvements in or relating to navigation aiding radio systems
摘要
申请公布号
GB644303(A)
申请公布日期
1950.10.11
申请号
GB19460035508
申请日期
1946.11.29
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED
发明人
分类号
G01S7/282
主分类号
G01S7/282
代理机构
代理人
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