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发明名称
Ventilator
摘要
申请公布号
US1790059(A)
申请公布日期
1931.01.27
申请号
US19300418581
申请日期
1930.01.04
申请人
SAFETY BOAT CO.
发明人
NELSON FRED NICHOLAS
分类号
B63J2/10
主分类号
B63J2/10
代理机构
代理人
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