BOX CULVERT WITHOUT RIB STIFFENERS,申请号CA19922072036-传众专利搜索

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发明名称	BOX CULVERT WITHOUT RIB STIFFENERS
摘要
申请公布号	CA2072036(A1)	申请公布日期	1992.12.25
申请号	CA19922072036	申请日期	1992.06.23
申请人	SYRO STEEL COMPANY	发明人	MUSSER, SAMUEL C.;CIER, DONALD J.
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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