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发明名称
Double-action pumps
摘要
申请公布号
US2729170(A)
申请公布日期
1956.01.03
申请号
US19500188723
申请日期
1950.10.06
申请人
T AND N VALVE COMPANY
发明人
TUCKER WELSEY L.
分类号
F04B53/14
主分类号
F04B53/14
代理机构
代理人
主权项
地址
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