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经营范围
发明名称
Pumping apparatus
摘要
申请公布号
US1765427(A)
申请公布日期
1930.06.24
申请号
US19240732938
申请日期
1924.08.19
申请人
HUMPHREYS IRA B
发明人
HUMPHREYS IRA B.
分类号
F04F1/14
主分类号
F04F1/14
代理机构
代理人
主权项
地址
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