ADDITIVO PER FANGHI DI PERFORA ZIONE,申请号IT19740026112-传众专利搜索

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发明名称	ADDITIVO PER FANGHI DI PERFORA ZIONE
摘要
申请公布号	IT1019785(B)	申请公布日期	1977.11.30
申请号	IT19740026112	申请日期	1974.08.07
申请人	ITALCHEMI SPA	发明人	FERRONI G
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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