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发明名称
Hydraulic pump
摘要
申请公布号
US2472529(A)
申请公布日期
1949.06.07
申请号
US19470749434
申请日期
1947.05.21
申请人
POUL HAAHR
发明人
HAAHR POUL
分类号
主分类号
代理机构
代理人
主权项
地址
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