Drainage disc for membrane assembly,申请号US19880187627-传众专利搜索

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发明名称	Drainage disc for membrane assembly
摘要
申请公布号	US4869821(A)	申请公布日期	1989.09.26
申请号	US19880187627	申请日期	1988.04.28
申请人	W. R. GRACE & CO.-CONN.	发明人	KORIN, AMOS
分类号	B01D63/08	主分类号	B01D63/08
代理机构		代理人
主权项
地址

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