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发明名称
Pumping unit
摘要
申请公布号
US2515360(A)
申请公布日期
1950.07.18
申请号
US19480037385
申请日期
1948.07.07
申请人
CABOT SHOPS, INC.
发明人
VAIL ROBERT P.
分类号
F04B47/02
主分类号
F04B47/02
代理机构
代理人
主权项
地址
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