Overflow and return trap for vent pipes,申请号US19500181496-传众专利搜索

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发明名称	Overflow and return trap for vent pipes
摘要
申请公布号	US2564871(A)	申请公布日期	1951.08.21
申请号	US19500181496	申请日期	1950.08.25
申请人	WIKMAN JOHN M	发明人	WIKMAN JOHN M.
分类号	B63J2/10	主分类号	B63J2/10
代理机构		代理人
主权项
地址

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