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发明名称
Controllable propeller
摘要
申请公布号
US2291953(A)
申请公布日期
1942.08.04
申请号
US19400361155
申请日期
1940.10.14
申请人
DICKS THOMAS A
发明人
DICKS THOMAS A.
分类号
B64C11/44
主分类号
B64C11/44
代理机构
代理人
主权项
地址
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