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发明名称
Navigating instrument
摘要
申请公布号
US1821870(A)
申请公布日期
1931.09.01
申请号
US19270217708
申请日期
1927.09.06
申请人
HERBERT ADDISON;BLAINE LUARD WILLIAM
发明人
ADDISON HERBERT;LUARD WILLIAM BLAINE
分类号
G01C21/20
主分类号
G01C21/20
代理机构
代理人
主权项
地址
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