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发明名称
Antipound pump pressure equalizer
摘要
申请公布号
US2344786(A)
申请公布日期
1944.03.21
申请号
US19420436004
申请日期
1942.03.24
申请人
PATTERSON EDGAR W;PATTERSON WESLEY L
发明人
PATTERSON EDGAR W.;PATTERSON WESLEY L.
分类号
F04B47/00
主分类号
F04B47/00
代理机构
代理人
主权项
地址
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