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发明名称
DEAD RECKONING LOG FOR SHIPS
摘要
申请公布号
GB2163258(B)
申请公布日期
1988.08.10
申请号
GB19840020931
申请日期
1984.08.17
申请人
MICHAEL * BRYAN
发明人
MICHAEL * BRYAN
分类号
G01C21/12;(IPC1-7):G01C21/12
主分类号
G01C21/12
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代理人
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