Dredge,申请号US19410414715-传众专利搜索

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发明名称	Dredge
摘要
申请公布号	US2348389(A)	申请公布日期	1944.05.09
申请号	US19410414715	申请日期	1941.10.13
申请人	JOHNSON WALTER W	发明人	JOHNSON WALTER W.
分类号	E02F3/30;E02F3/42;E02F5/00	主分类号	E02F3/30
代理机构		代理人
主权项
地址

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