REVERSE-ACTION HYDRAULIC IMPACT DEVICE,申请号SU19721820046-传众专利搜索

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发明名称	REVERSE-ACTION HYDRAULIC IMPACT DEVICE
摘要
申请公布号	SU794133(A1)	申请公布日期	1981.01.07
申请号	SU19721820046	申请日期	1972.08.14
申请人	VNII BUROVOJ TEKHNIKI	发明人	NAZAROV VIKTOR ,SU
分类号	E21B4/06;(IPC1-7):E21B4/06	主分类号	E21B4/06
代理机构		代理人
主权项
地址

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