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发明名称
Gear pump
摘要
申请公布号
US2202913(A)
申请公布日期
1940.06.04
申请号
US19380196692
申请日期
1938.03.18
申请人
PUMP ENGINEERING SERVICE CORPORATION
发明人
JOHNSON JAMES P.
分类号
F04C15/00
主分类号
F04C15/00
代理机构
代理人
主权项
地址
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