Sanitary drain pipe cleaner,申请号US19400323483-传众专利搜索

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发明名称	Sanitary drain pipe cleaner
摘要
申请公布号	US2237880(A)	申请公布日期	1941.04.08
申请号	US19400323483	申请日期	1940.03.11
申请人	BON HORST EARL VON;STRANG LE ROY M	发明人	HORST EARL VON BON;STRANG LE ROY M.
分类号	E03C1/302	主分类号	E03C1/302
代理机构		代理人
主权项
地址

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