DEVICE FOR DRILLING BIT FEED AND ROTATION,申请号SU19792779281-传众专利搜索

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发明名称	DEVICE FOR DRILLING BIT FEED AND ROTATION
摘要
申请公布号	SU827772(A1)	申请公布日期	1981.05.07
申请号	SU19792779281	申请日期	1979.06.18
申请人	PLOTKO MIKHAIL A,SU	发明人	PLOTKO MIKHAIL A,SU
分类号	E21B19/086;E21B3/02;E21B44/02;(IPC1-7):E21C5/08	主分类号	E21B19/086
代理机构		代理人
主权项
地址

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