APPARECCHIO CHE SI PORTA A CONTATTO CON PERFORAZIONE PER GRUPPO PER GRUPPO PERFORATORE DI FONDO.,申请号IT19780029136-传众专利搜索

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发明名称	APPARECCHIO CHE SI PORTA A CONTATTO CON PERFORAZIONE PER GRUPPO PER GRUPPO PERFORATORE DI FONDO.
摘要
申请公布号	IT7829136(D0)	申请公布日期	1978.10.26
申请号	IT19780029136	申请日期	1978.10.26
申请人	TECHNICAL DRILLING TOOLS	发明人	GREY BASSINGER
分类号	E21B17/10;(IPC1-7):E21B/	主分类号	E21B17/10
代理机构		代理人
主权项
地址

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