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发明名称
Hub- oder Tragschrauber
摘要
申请公布号
DE870952(C)
申请公布日期
1953.03.19
申请号
DE1951SC07842
申请日期
1951.10.27
申请人
ADOLF SCHAEFER
发明人
分类号
B64D17/78
主分类号
B64D17/78
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代理人
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