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发明名称	BLADE BIT
摘要
申请公布号	SU1097772(A1)	申请公布日期	1984.06.15
申请号	SU19813357323	申请日期	1981.11.24
申请人	TOROPTSEV NIKOLAJ G,SU	发明人	TOROPTSEV NIKOLAJ G,SU
分类号	E21B10/42;(IPC1-7):E21B10/42	主分类号	E21B10/42
代理机构		代理人
主权项
地址

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