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发明名称
Pumping unit
摘要
申请公布号
US1799100(A)
申请公布日期
1931.03.31
申请号
US19280250173
申请日期
1928.01.28
申请人
LINK-BELT COMPANY
发明人
KEIL OTTO G.
分类号
F04B9/02
主分类号
F04B9/02
代理机构
代理人
主权项
地址
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