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发明名称
Nautical course corrector
摘要
申请公布号
US2185912(A)
申请公布日期
1940.01.02
申请号
US19370177322
申请日期
1937.11.30
申请人
THOR FLADMARK
发明人
FLADMARK THOR
分类号
G01C21/20
主分类号
G01C21/20
代理机构
代理人
主权项
地址
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