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经营范围
发明名称
Marine propeller
摘要
申请公布号
US2498348(A)
申请公布日期
1950.02.21
申请号
US19470751286
申请日期
1947.05.29
申请人
THOMPSON JR FRANK E
发明人
JR. FRANK E. THOMPSON,
分类号
B63H1/12
主分类号
B63H1/12
代理机构
代理人
主权项
地址
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