Tractor attachment for feeding and elevating snow,申请号US19250008695-传众专利搜索

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发明名称	Tractor attachment for feeding and elevating snow
摘要
申请公布号	US1764084(A)	申请公布日期	1930.06.17
申请号	US19250008695	申请日期	1925.02.12
申请人	N. P. NELSON IRON WORKS INC.	发明人	NELSON NELS P.;JAMES FREDERIC W.
分类号	E01H5/09	主分类号	E01H5/09
代理机构		代理人
主权项
地址

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