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发明名称
PUMPING DEVICES
摘要
申请公布号
GB1585073(A)
申请公布日期
1981.02.25
申请号
GB19760020143
申请日期
1976.05.15
申请人
ACKERMANN R A;NICHOLS P W
发明人
分类号
F04B1/02;F04B7/00;F04B15/02;(IPC1-7):F04B15/02;F04B21/02
主分类号
F04B1/02
代理机构
代理人
主权项
地址
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