Drain,申请号US19360070369-传众专利搜索

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法人/股东/高管

发明名称	Drain
摘要
申请公布号	US2079269(A)	申请公布日期	1937.05.04
申请号	US19360070369	申请日期	1936.03.23
申请人	WILLIAMS DAVID S	发明人	WILLIAMS DAVID S.
分类号	E04D13/04	主分类号	E04D13/04
代理机构		代理人
主权项
地址

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