Sewer vent cover retainer,申请号US19460681405-传众专利搜索

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发明名称	Sewer vent cover retainer
摘要
申请公布号	US2524242(A)	申请公布日期	1950.10.03
申请号	US19460681405	申请日期	1946.07.03
申请人	WEAVER DANIEL A	发明人	WEAVER DANIEL A.
分类号	E03F5/08	主分类号	E03F5/08
代理机构		代理人
主权项
地址

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