Portable cast reenforced concrete step,申请号US19350014391-传众专利搜索

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发明名称	Portable cast reenforced concrete step
摘要
申请公布号	US2044260(A)	申请公布日期	1936.06.16
申请号	US19350014391	申请日期	1935.04.03
申请人	HENRY SCHIELE	发明人	SCHIELE HENRY
分类号	E04F11/022	主分类号	E04F11/022
代理机构		代理人
主权项
地址

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