SELF-CLEANING SCREENING DEVICE.,申请号EP19890901176-传众专利搜索

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发明名称	SELF-CLEANING SCREENING DEVICE.
摘要
申请公布号	EP0391969(B1)	申请公布日期	1995.06.14
申请号	EP19890901176	申请日期	1988.11.21
申请人	FREY, ROBERT E.	发明人	FREY, ROBERT E.
分类号	B01D46/00;B01D46/04;B01D46/24;B01D46/52;B07B1/55;B07B7/06;B07B11/08;(IPC1-7):B07B1/55	主分类号	B01D46/00
代理机构		代理人
主权项
地址

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