Cross bracing and bridging for metallic joists,申请号US19290344480-传众专利搜索

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发明名称	Cross bracing and bridging for metallic joists
摘要
申请公布号	US1824797(A)	申请公布日期	1931.09.29
申请号	US19290344480	申请日期	1929.03.05
申请人	GABRIEL STEEL COMPANY	发明人	ZABRISKIE WILLIAM F.
分类号	E04C3/02	主分类号	E04C3/02
代理机构		代理人
主权项
地址

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