DISPOSITIVO AUTOMATICO DI CAROTAGGIO,申请号IT19750049512-传众专利搜索

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发明名称	DISPOSITIVO AUTOMATICO DI CAROTAGGIO
摘要
申请公布号	IT1035667(B)	申请公布日期	1979.10.20
申请号	IT19750049512	申请日期	1975.05.09
申请人	DRESSER IND.INC	发明人
分类号	E21B21/00;E21B21/06;E21B49/02;(IPC1-7):E21B/	主分类号	E21B21/00
代理机构		代理人
主权项
地址

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