Deep or bottom cleaner for filter beds,申请号US19390285078-传众专利搜索

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发明名称	Deep or bottom cleaner for filter beds
摘要
申请公布号	US2218355(A)	申请公布日期	1940.10.15
申请号	US19390285078	申请日期	1939.07.18
申请人	W. C. LAUGHLIN CORPORATION	发明人	LAUGHLIN WILLIAM C.
分类号	B01D24/22	主分类号	B01D24/22
代理机构		代理人
主权项
地址

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