Means for treating bank gravel,申请号US19540420253-传众专利搜索

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发明名称	Means for treating bank gravel
摘要
申请公布号	US2780417(A)	申请公布日期	1957.02.05
申请号	US19540420253	申请日期	1954.04.01
申请人	HARRIS HOLBERT L	发明人	HARRIS HOLBERT L.
分类号	B02C13/18	主分类号	B02C13/18
代理机构		代理人
主权项
地址

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