Earth tamping device,申请号US19380235265-传众专利搜索

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发明名称	Earth tamping device
摘要
申请公布号	US2169468(A)	申请公布日期	1939.08.15
申请号	US19380235265	申请日期	1938.10.15
申请人	MCDOUGALL JOHN A;MCGARY ROBERT E	发明人	MCDOUGALL JOHN A.;MCGARY ROBERT E.
分类号	E01C19/34;E02B5/02;E02D3/046	主分类号	E01C19/34
代理机构		代理人
主权项
地址

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