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发明名称
HELICOPTER AND THE LIKE
摘要
申请公布号
CA453934(A)
申请公布日期
1949.01.11
申请号
CAD453934
申请日期
申请人
RIFAT AVIGDOR
发明人
RIFAT AVIGDOR
分类号
主分类号
代理机构
代理人
主权项
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