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发明名称
Pumping apparatus for sumps
摘要
申请公布号
US2531752(A)
申请公布日期
1950.11.28
申请号
US19460705891
申请日期
1946.10.26
申请人
ECONOMY PUMPS, INC.
发明人
THOMAS RICHARD H.
分类号
E03F5/22
主分类号
E03F5/22
代理机构
代理人
主权项
地址
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