ROCK DRILL WITH OVERRIDING CLUTCH,申请号USD3587753-传众专利搜索

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发明名称	ROCK DRILL WITH OVERRIDING CLUTCH
摘要
申请公布号	US3587753(A)	申请公布日期	1971.06.28
申请号	USD3587753	申请日期	1969.05.21
申请人	WESTINGHOUSE AIR BRAKE CO.	发明人	JACOB E. FEUCHT
分类号	E21B1/26;E21B6/08;(IPC1-7):E21C3/24;E21C3/30	主分类号	E21B1/26
代理机构		代理人
主权项
地址

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