Concrete paving block,申请号GB19490019845-传众专利搜索

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发明名称	Concrete paving block
摘要
申请公布号	GB662017(A)	申请公布日期	1951.11.28
申请号	GB19490019845	申请日期	1949.07.28
申请人	VICTOR TRIEF	发明人
分类号	E01C5/06	主分类号	E01C5/06
代理机构		代理人
主权项
地址

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