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经营范围
发明名称
Adjustable propeller
摘要
申请公布号
US2415421(A)
申请公布日期
1947.02.11
申请号
US19440535515
申请日期
1944.05.13
申请人
DE FILIPPIS RAYMOND
发明人
FILIPPIS RAYMOND DE
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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