Pipe cleaning device,申请号US19410383508-传众专利搜索

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发明名称	Pipe cleaning device
摘要
申请公布号	US2355733(A)	申请公布日期	1944.08.15
申请号	US19410383508	申请日期	1941.03.15
申请人	BUYS	发明人	JOHNSON CHARLES A.;BUYS GLENN E.
分类号	E03F9/00	主分类号	E03F9/00
代理机构		代理人
主权项
地址

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