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发明名称
Gear pump
摘要
申请公布号
US2982221(A)
申请公布日期
1961.05.02
申请号
US19580746145
申请日期
1958.07.02
申请人
WHITFIELD JOSEPH E
发明人
WHITFIELD JOSEPH E.
分类号
F04C2/08;F04C2/16;F04C2/18;F04C15/00
主分类号
F04C2/08
代理机构
代理人
主权项
地址
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