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发明名称
Aeroplane propeller
摘要
申请公布号
US1987650(A)
申请公布日期
1935.01.15
申请号
US19310529430
申请日期
1931.04.11
申请人
WIEGAND ALBERT P
发明人
WIEGAND ALBERT P.
分类号
B64C11/42
主分类号
B64C11/42
代理机构
代理人
主权项
地址
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