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发明名称
Apparatus for determining a direction
摘要
申请公布号
US2513849(A)
申请公布日期
1950.07.04
申请号
US19460677392
申请日期
1946.06.17
申请人
DE FRANCE HENRI GEORGES
发明人
FRANCE HENRI GEORGES DE
分类号
G01S1/02;G01S19/28;G01S19/36
主分类号
G01S1/02
代理机构
代理人
主权项
地址
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