An improved process for the production of a material for covering bituminous road surfaces by impregnation of fragments or gravel with bituminous materials,申请号GB19300022550-传众专利搜索

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发明名称	An improved process for the production of a material for covering bituminous road surfaces by impregnation of fragments or gravel with bituminous materials
摘要
申请公布号	GB357699(A)	申请公布日期	1931.10.01
申请号	GB19300022550	申请日期	1930.07.26
申请人	OSKAR DOENIG	发明人
分类号	E01C7/35;H01K3/06	主分类号	E01C7/35
代理机构		代理人
主权项
地址

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