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经营范围
发明名称
Rotary pump or liquid flow regulator
摘要
申请公布号
US1838252(A)
申请公布日期
1931.12.29
申请号
US19300442255
申请日期
1930.04.07
申请人
DENVER COPPAGE BENJAMIN
发明人
COPPAGE BENJAMIN DENVER
分类号
F04C2/07
主分类号
F04C2/07
代理机构
代理人
主权项
地址
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