Snowplow,申请号US19300503305-传众专利搜索

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发明名称	Snowplow
摘要
申请公布号	US1867255(A)	申请公布日期	1932.07.12
申请号	US19300503305	申请日期	1930.12.18
申请人	LA MATER GEORGE F DE	发明人	MATER GEORGE F. DE LA
分类号	E01H5/06	主分类号	E01H5/06
代理机构		代理人
主权项
地址

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