CONNETTORE PER TESTA DI POZZO PETROLIFERO,申请号IT19820021418-传众专利搜索

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发明名称	CONNETTORE PER TESTA DI POZZO PETROLIFERO
摘要
申请公布号	IT1201089(B)	申请公布日期	1989.01.27
申请号	IT19820021418	申请日期	1982.05.21
申请人	NELSON NORMAN ALLEN	发明人	NELSON NORMAN ALLEN
分类号	E21B33/038;F16L37/00;(IPC1-7):E21B/	主分类号	E21B33/038
代理机构		代理人
主权项
地址

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