Graduated dual density liquid filter element,申请号US19660520179-传众专利搜索

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发明名称	Graduated dual density liquid filter element
摘要
申请公布号	US3384241(A)	申请公布日期	1968.05.21
申请号	US19660520179	申请日期	1966.01.12
申请人	NEFCO FILTER CORPORATION	发明人	NOSTRAND WILLIAM G.
分类号	B01D29/15;F01M13/04	主分类号	B01D29/15
代理机构		代理人
主权项
地址

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