SEA MINING METHOD AND APPARATUS,申请号USD3438142-传众专利搜索

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发明名称	SEA MINING METHOD AND APPARATUS
摘要
申请公布号	US3438142(A)	申请公布日期	1969.04.15
申请号	USD3438142	申请日期	1965.06.07
申请人	MANFRED G. KRUTEIN	发明人	MANFRED G. KRUTEIN
分类号	E02F3/88;E02F7/04;E02F9/06;E21C45/00;(IPC1-7):E02F1/00;E02F7/00	主分类号	E02F3/88
代理机构		代理人
主权项
地址

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