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经营范围
发明名称
Propeller
摘要
申请公布号
US2469919(A)
申请公布日期
1949.05.10
申请号
US19440559309
申请日期
1944.10.18
申请人
JOSEPH FISCHER
发明人
FISCHER JOSEPH
分类号
B64C11/16
主分类号
B64C11/16
代理机构
代理人
主权项
地址
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