SYSTEM AND METHOD FOR PROTECTING A PUMP,ESPECIALLY A DEEP-WELL PUMP AGAINST DRY OPERATION,申请号PL19870263666-传众专利搜索

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发明名称	SYSTEM AND METHOD FOR PROTECTING A PUMP,ESPECIALLY A DEEP-WELL PUMP AGAINST DRY OPERATION
摘要
申请公布号	PL263666(A1)	申请公布日期	1988.10.27
申请号	PL19870263666	申请日期	1987.01.14
申请人		发明人
分类号	F04B;(IPC1-7):F04B/	主分类号	F04B
代理机构		代理人
主权项
地址

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