Coal cutter with vibratory drive,申请号US19670636554-传众专利搜索

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发明名称	Coal cutter with vibratory drive
摘要
申请公布号	US3419313(A)	申请公布日期	1968.12.31
申请号	US19670636554	申请日期	1967.05.05
申请人	GEWERKSCHAFT EISENHUTTE WESTFALIA	发明人	ULUSAL NURIYE
分类号	E21C27/46	主分类号	E21C27/46
代理机构		代理人
主权项
地址

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