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发明名称
PUMP PISTON FOR PUMPS USED IN HANDLING PETROLEUM PRODUCTS IN PARTICULAR REFLUX
摘要
申请公布号
PL152723(B1)
申请公布日期
1991.01.31
申请号
PL19860257981
申请日期
1986.02.14
申请人
发明人
分类号
F04B;(IPC1-7):F04B21/04
主分类号
F04B
代理机构
代理人
主权项
地址
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