DOUBLE-ACTION HYDRAULIC PERCUSSION DEVICE,申请号SU19742047185-传众专利搜索

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发明名称	DOUBLE-ACTION HYDRAULIC PERCUSSION DEVICE
摘要
申请公布号	SU631641(A1)	申请公布日期	1978.11.05
申请号	SU19742047185	申请日期	1974.07.29
申请人	INST GORNOGO DELA AN KAZAKHSKOJ SSR	发明人	POTOTSKIJ VASILIJ B,SU
分类号	(IPC1-7):E21B5/00	主分类号	(IPC1-7):E21B5/00
代理机构		代理人
主权项
地址

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