CASING MATERIAL OF INCREASED EFFECTIVITY IN PARTICULAR FOR PERFORATED PIPES USED IN HYDROCARBON MINING BOREHOLES,申请号PL19840245782-传众专利搜索

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发明名称	CASING MATERIAL OF INCREASED EFFECTIVITY IN PARTICULAR FOR PERFORATED PIPES USED IN HYDROCARBON MINING BOREHOLES
摘要
申请公布号	PL245782(A1)	申请公布日期	1985.07.30
申请号	PL19840245782	申请日期	1984.01.18
申请人	ORSZAGOS KOOLAJ GAZIPARI;VEGYI ROBBANOANYAGIPARI FELUG	发明人
分类号	E21B;(IPC1-7):E21B/	主分类号	E21B
代理机构		代理人
主权项
地址

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