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经营范围
发明名称
Mechanism for indicating azimuthal movement of a periscope
摘要
申请公布号
US2418799(A)
申请公布日期
1947.04.08
申请号
US19350029080
申请日期
1935.06.29
申请人
CORA BUCK WILLARD;FORD INSTRUMENT COMPANY, INC.
发明人
分类号
G02B23/08
主分类号
G02B23/08
代理机构
代理人
主权项
地址
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