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发明名称
Navigational apparatus
摘要
申请公布号
US2914853(A)
申请公布日期
1959.12.01
申请号
US19550528423
申请日期
1955.08.15
申请人
THE DECCA RECORD COMPANY LIMITED
发明人
MICHELL RICHARD BURGESS
分类号
G01C21/02
主分类号
G01C21/02
代理机构
代理人
主权项
地址
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