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发明名称
Hydraulic pumping jack
摘要
申请公布号
US2566295(A)
申请公布日期
1951.09.04
申请号
US19480061479
申请日期
1948.11.22
申请人
THE PELTON WATER WHEEL COMPANY
发明人
ALWARD LEROY D.
分类号
F04B47/04
主分类号
F04B47/04
代理机构
代理人
主权项
地址
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