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发明名称
Helicopter having means for adjusting the center of gravity and the lift rotor axis thereof
摘要
申请公布号
US2428475(A)
申请公布日期
1947.10.07
申请号
US19450586659
申请日期
1945.04.05
申请人
MAURICE SWAAB
发明人
SWAAB MAURICE
分类号
B64C27/04
主分类号
B64C27/04
代理机构
代理人
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