Top surface of concrete and the like and method of forming the same,申请号US19280301882-传众专利搜索

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发明名称	Top surface of concrete and the like and method of forming the same
摘要
申请公布号	US1857511(A)	申请公布日期	1932.05.10
申请号	US19280301882	申请日期	1928.08.24
申请人	JOHNSON NATHAN C	发明人	JOHNSON NATHAN C.
分类号	E01C7/14	主分类号	E01C7/14
代理机构		代理人
主权项
地址

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