DOUBLE-ACTION HYDRO-OPERATED PERCUSSION DEVICE,申请号SU19742045162-传众专利搜索

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发明名称	DOUBLE-ACTION HYDRO-OPERATED PERCUSSION DEVICE
摘要
申请公布号	SU572559(A1)	申请公布日期	1977.09.15
申请号	SU19742045162	申请日期	1974.06.04
申请人	NOVOCHERKASSKIJ POLT I IM.SERGO ORDZHONIKIDZE	发明人	DUSEV VYACHESLAV ,SU;SADCHIKOV ANATOLIJ V,SU
分类号	(IPC1-7):E21B5/00;E21B1/06	主分类号	(IPC1-7):E21B5/00
代理机构		代理人
主权项
地址

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