Machine and method for finegrading roadbeds,申请号US19310580541-传众专利搜索

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发明名称	Machine and method for finegrading roadbeds
摘要
申请公布号	US1990362(A)	申请公布日期	1935.02.05
申请号	US19310580541	申请日期	1931.12.12
申请人	BAKER ROBERT D	发明人	BAKER ROBERT D.
分类号	E02F3/76	主分类号	E02F3/76
代理机构		代理人
主权项
地址

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