PARTIAL FLOWMETER FOR DRILLING RIGS,申请号SU19772509007-传众专利搜索

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发明名称	PARTIAL FLOWMETER FOR DRILLING RIGS
摘要
申请公布号	SU883377(A1)	申请公布日期	1981.11.23
申请号	SU19772509007	申请日期	1977.07.04
申请人	TSNI PK I PROFILAKTIKI PNEVMOKONIOZOV TEKHNIKI BEZOPASNOSTI	发明人	YARTSEV VLADIMIR A,SU;RUSINOV ANATOLIJ G,SU;STEPANNIKOV GENNADIJ A,SU
分类号	E21B47/12;G01F15/00;(IPC1-7):E21B47/12	主分类号	E21B47/12
代理机构		代理人
主权项
地址

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