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发明名称
PERFECCIONAMIENTOS EN LOS SISTEMAS DE BRUJULA PARA EMBARCACIONES
摘要
申请公布号
ES246903(A1)
申请公布日期
1959.06.01
申请号
ES19030002469
申请日期
1959.01.20
申请人
KELVIN & HUGHES LIMITED
发明人
分类号
G01C17/36;(IPC1-7):G01C17/36
主分类号
G01C17/36
代理机构
代理人
主权项
地址
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