Apparatus for laying concrete floors,申请号US19300417855-传众专利搜索

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发明名称	Apparatus for laying concrete floors
摘要
申请公布号	US1929288(A)	申请公布日期	1933.10.03
申请号	US19300417855	申请日期	1930.01.02
申请人	ROOS HENRY W	发明人	ROOS HENRY W.
分类号	E04G11/36	主分类号	E04G11/36
代理机构		代理人
主权项
地址

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