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发明名称
Dynamic earth inductor compass
摘要
申请公布号
US2376883(A)
申请公布日期
1945.05.29
申请号
US19420428872
申请日期
1942.01.30
申请人
SPERRY GYROSCOPE COMPANY, INC.
发明人
RIGGS ALGER S.;THOMPSON HERBERT H.
分类号
G01C17/30
主分类号
G01C17/30
代理机构
代理人
主权项
地址
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