Apparatus for grading and packing snow,申请号US19510261993-传众专利搜索

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发明名称	Apparatus for grading and packing snow
摘要
申请公布号	US2786283(A)	申请公布日期	1957.03.26
申请号	US19510261993	申请日期	1951.12.17
申请人	STEPHEN BRADLEY	发明人	BRADLEY STEPHEN
分类号	E01H4/02	主分类号	E01H4/02
代理机构		代理人
主权项
地址

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