Backflow preventing unit for dishwashing apparatus,申请号US19490108071-传众专利搜索

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发明名称	Backflow preventing unit for dishwashing apparatus
摘要
申请公布号	US2652850(A)	申请公布日期	1953.09.22
申请号	US19490108071	申请日期	1949.08.02
申请人	MANVILLE CHARLES J	发明人	MANVILLE CHARLES J.
分类号	A47L17/00	主分类号	A47L17/00
代理机构		代理人
主权项
地址

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