Bitumen road paving,申请号US19270180075-传众专利搜索

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发明名称	Bitumen road paving
摘要
申请公布号	US1779067(A)	申请公布日期	1930.10.21
申请号	US19270180075	申请日期	1927.03.31
申请人	AMIESITE ASPHALT COMPANY OF AMERICA	发明人	HEPBURN DONALD MCKNIGHT
分类号	E01C7/18	主分类号	E01C7/18
代理机构		代理人
主权项
地址

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