Culvert,申请号US19320633714-传众专利搜索

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发明名称	Culvert
摘要
申请公布号	US1955407(A)	申请公布日期	1934.04.17
申请号	US19320633714	申请日期	1932.09.19
申请人	CARSWELL FIRMAN L;SCHMIDT OTTO W	发明人	CARSWELL FIRMAN L.;SCHMIDT OTTO W.
分类号	E01F5/00	主分类号	E01F5/00
代理机构		代理人
主权项
地址

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