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发明名称
Improvements in or relating to instruments for use on aircraft
摘要
申请公布号
GB323293(A)
申请公布日期
1930.01.02
申请号
GB19280030695
申请日期
1928.10.23
申请人
HENRY FREDERICK VULLIAMY BATTLE
发明人
分类号
G01C9/00
主分类号
G01C9/00
代理机构
代理人
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