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发明名称
Well pump
摘要
申请公布号
US2503986(A)
申请公布日期
1950.04.11
申请号
US19460672146
申请日期
1946.05.24
申请人
ALLEY THOMAS R
发明人
ALLEY THOMAS R.
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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