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发明名称
SYSTEM OF BLIND APPROACH AND LANDING FOR AIRCRAFT
摘要
申请公布号
CA538789(A)
申请公布日期
1957.03.26
申请号
CAD538789
申请日期
申请人
PYE LIMITED
发明人
DONALD WEIGHTON
分类号
主分类号
代理机构
代理人
主权项
地址
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