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经营范围
发明名称
Marine propeller
摘要
申请公布号
US2298869(A)
申请公布日期
1942.10.13
申请号
US19400365185
申请日期
1940.11.12
申请人
COGSWELL BYRON A
发明人
COGSWELL BYRON A.
分类号
B63H1/16
主分类号
B63H1/16
代理机构
代理人
主权项
地址
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