DEVICE FOR DETERMINING THE WORK TIME OF OIL WELL EQUIPMENT,申请号SU19792841537-传众专利搜索

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发明名称	DEVICE FOR DETERMINING THE WORK TIME OF OIL WELL EQUIPMENT
摘要
申请公布号	SU885537(A1)	申请公布日期	1981.11.30
申请号	SU19792841537	申请日期	1979.11.20
申请人	IVANO-FRANKOVSKIJ I NEFTI GAZA	发明人	IVASIV VASILIJ M,SU;POCHTENNYJ EVGENIJ K,SU;TARAEVSKIJ STEPAN I,SU
分类号	E21B12/02;(IPC1-7):E21B12/02	主分类号	E21B12/02
代理机构		代理人
主权项
地址

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