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经营范围
发明名称
Enregistreur de gisement pour la navigation maritime ou aérienne
摘要
申请公布号
FR838214(A)
申请公布日期
1939.03.01
申请号
FRD838214
申请日期
1938.05.21
申请人
发明人
MARIE HAMELIN MARCEL, EMILE,
分类号
G01C21/20
主分类号
G01C21/20
代理机构
代理人
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