Supporting means for forming concrete floors,申请号US19400323862-传众专利搜索

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发明名称	Supporting means for forming concrete floors
摘要
申请公布号	US2297952(A)	申请公布日期	1942.10.06
申请号	US19400323862	申请日期	1940.03.14
申请人	LACLEDE STEEL COMPANY	发明人	FRIBERG BENGT F.
分类号	E04G17/18	主分类号	E04G17/18
代理机构		代理人
主权项
地址

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