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发明名称
Pump
摘要
申请公布号
US2120448(A)
申请公布日期
1938.06.14
申请号
US19370119456
申请日期
1937.01.07
申请人
F. E. TWISS CO., INC.
发明人
TWISS FRANK E.
分类号
F04B5/02;F04B17/04;F04B53/10;F04B53/12
主分类号
F04B5/02
代理机构
代理人
主权项
地址
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