Method of desilting channels,申请号US19280249307-传众专利搜索

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发明名称	Method of desilting channels
摘要
申请公布号	US1777491(A)	申请公布日期	1930.10.07
申请号	US19280249307	申请日期	1928.01.25
申请人	HARP CHARLES B	发明人	HARP CHARLES B.
分类号	E02B3/02	主分类号	E02B3/02
代理机构		代理人
主权项
地址

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