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经营范围
发明名称
Constant speed propeller mechanism
摘要
申请公布号
US2419893(A)
申请公布日期
1947.04.29
申请号
US19430506257
申请日期
1943.10.14
申请人
EVEREL PROPELLER CORPORATION
发明人
HACKETHAL PAUL F.
分类号
B64C11/34
主分类号
B64C11/34
代理机构
代理人
主权项
地址
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