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发明名称
Navigation instrument
摘要
申请公布号
US2588763(A)
申请公布日期
1952.03.11
申请号
US19480011023
申请日期
1948.02.26
申请人
KELVIN & HUGHES LIMITED
发明人
REILLY HUGH LAMBERT;SEYMOUR KENNETH
分类号
G01C21/20
主分类号
G01C21/20
代理机构
代理人
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地址
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