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发明名称
Navigational instrument
摘要
申请公布号
US1919222(A)
申请公布日期
1933.07.25
申请号
US19330649958
申请日期
1933.01.03
申请人
JENSEN HENRY M;GINGRICH JOHN E;GUILLERMO MEDINA
发明人
JENSEN HENRY M.;GINGRICH JOHN E.;MEDINA GUILLERMO
分类号
G06G1/14
主分类号
G06G1/14
代理机构
代理人
主权项
地址
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