Adjustable stringer mold for concrete steps,申请号US19480063767-传众专利搜索

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发明名称	Adjustable stringer mold for concrete steps
摘要
申请公布号	US2548703(A)	申请公布日期	1951.04.10
申请号	US19480063767	申请日期	1948.12.06
申请人	CLINE RALPH L	发明人	CLINE RALPH L.
分类号	B28B7/22;E04G13/06	主分类号	B28B7/22
代理机构		代理人
主权项
地址

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