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经营范围
发明名称
Airplane propeller
摘要
申请公布号
US1816730(A)
申请公布日期
1931.07.28
申请号
US19300460251
申请日期
1930.06.10
申请人
ERNEST G. HILSABECK
发明人
HARDIN HARVEY H.
分类号
B64C11/36
主分类号
B64C11/36
代理机构
代理人
主权项
地址
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