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发明名称
Combination lifting and forward propulsion device for use on air and water vehicles
摘要
申请公布号
US2019726(A)
申请公布日期
1935.11.05
申请号
US19340752845
申请日期
1934.11.13
申请人
KARL QUAST OTTO
发明人
QUAST OTTO KARL
分类号
B64C11/00
主分类号
B64C11/00
代理机构
代理人
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