BORE-HOLE PIPE STRING,申请号PL19900288008-传众专利搜索

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发明名称	BORE-HOLE PIPE STRING
摘要
申请公布号	PL288008(A1)	申请公布日期	1992.06.01
申请号	PL19900288008	申请日期	1990.11.27
申请人	SIARKOPOL KOPALNIE I ZAKLADY P	发明人	CHWALEK EUGENIUSZ
分类号	E21B17/00;E21B43/28;(IPC1-7):E21B43/28	主分类号	E21B17/00
代理机构		代理人
主权项
地址

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