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经营范围
发明名称
Propeller construction for watercraft
摘要
申请公布号
US2568903(A)
申请公布日期
1951.09.25
申请号
US19490102838
申请日期
1949.07.02
申请人
J. IRVIN DOWELL;DE WITT E. BRYDGES
发明人
VASSAR ARCHIE W.
分类号
B63H1/28
主分类号
B63H1/28
代理机构
代理人
主权项
地址
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