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经营范围
发明名称
Improvements in or relating to navigational systems
摘要
申请公布号
GB9805473(D0)
申请公布日期
1998.05.13
申请号
GB19980005473
申请日期
1998.03.13
申请人
GEC MARCONI LTD
发明人
分类号
G01C21/00
主分类号
G01C21/00
代理机构
代理人
主权项
地址
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