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发明名称
Harbor navigation system
摘要
申请公布号
US2391079(A)
申请公布日期
1945.12.18
申请号
US19420449109
申请日期
1942.06.30
申请人
RADIO CORPORATION
发明人
DYCK ARTHUR VAN
分类号
B63B45/00;G01S1/02;G01S19/24
主分类号
B63B45/00
代理机构
代理人
主权项
地址
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