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发明名称
Mud pumps
摘要
申请公布号
US3033124(A)
申请公布日期
1962.05.08
申请号
US19560589752
申请日期
1956.06.06
申请人
HART WILSON JOHN
发明人
WILSON JOHN HART
分类号
F04B15/02;F04B53/00;F04B53/14;F04B53/16
主分类号
F04B15/02
代理机构
代理人
主权项
地址
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