Machine for tamping ballast,申请号US19470768301-传众专利搜索

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发明名称	Machine for tamping ballast
摘要
申请公布号	US2482123(A)	申请公布日期	1949.09.20
申请号	US19470768301	申请日期	1947.08.13
申请人	PHILBRICK FRANK H	发明人	PHILBRICK FRANK H.
分类号	E01B27/16	主分类号	E01B27/16
代理机构		代理人
主权项
地址

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