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发明名称
Navigation instrument
摘要
申请公布号
US2467412(A)
申请公布日期
1949.04.19
申请号
US19440539403
申请日期
1944.06.09
申请人
THE SPERRY CORPORATION
发明人
WATHEN ROBERT L.
分类号
G01S1/02;G01S19/48
主分类号
G01S1/02
代理机构
代理人
主权项
地址
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