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发明名称
Navigational compass rose plotting system
摘要
申请公布号
GB2229815(A)
申请公布日期
1990.10.03
申请号
GB19880026568
申请日期
1988.11.14
申请人
THOMAS ALEXANDER * COWAN
发明人
THOMAS ALEXANDER * COWAN
分类号
G01C21/20
主分类号
G01C21/20
代理机构
代理人
主权项
地址
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