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发明名称
Counter-rotating propeller drive
摘要
申请公布号
US2765040(A)
申请公布日期
1956.10.02
申请号
US19530382880
申请日期
1953.09.28
申请人
DARRAH KERMIT L
发明人
DARRAH KERMIT L.
分类号
B64D35/00;F42B19/12
主分类号
B64D35/00
代理机构
代理人
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