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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
GB626333(A)
申请公布日期
1949.07.13
申请号
GB19460031792
申请日期
1946.10.25
申请人
SADIR-CARPENTIER
发明人
分类号
G01S13/75
主分类号
G01S13/75
代理机构
代理人
主权项
地址
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