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经营范围
发明名称
Life preserver
摘要
申请公布号
US2244163(A)
申请公布日期
1941.06.03
申请号
US19390305113
申请日期
1939.11.18
申请人
C. IVANOFF;DINA KRONHAUS
发明人
KRONHAUS SEMEN
分类号
B63C9/087
主分类号
B63C9/087
代理机构
代理人
主权项
地址
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