Trekkinnretning,申请号NO19990000712-传众专利搜索

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发明名称	Trekkinnretning
摘要
申请公布号	NO990712(A)	申请公布日期	1999.04.12
申请号	NO19990000712	申请日期	1999.02.15
申请人	ASTEC DEVELOPMENTS LTD	发明人	SIMPSON, NEIL ANDREW
分类号	E21B23/00;E21B23/04;E21B23/08;E21B23/14;E21B37/04;F16L55/26;(IPC1-7):E21B23/14	主分类号	E21B23/00
代理机构		代理人
主权项
地址

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