METHOD OF DETERMINING THE INTERVAL TIME OF PROPAGATION OF ELASTIC ULTRASONIC WAVES THROUGH ROCK SPECIMEN,申请号SU19833601462-传众专利搜索

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发明名称	METHOD OF DETERMINING THE INTERVAL TIME OF PROPAGATION OF ELASTIC ULTRASONIC WAVES THROUGH ROCK SPECIMEN
摘要
申请公布号	SU1117404(A1)	申请公布日期	1984.10.07
申请号	SU19833601462	申请日期	1983.06.01
申请人	NEKRASOV SERGEJ A,SU;STRELCHENKO VALENTIN V,SU	发明人	NEKRASOV SERGEJ A,SU;STRELCHENKO VALENTIN V,SU
分类号	E21B47/00;E21B47/14;E21C39/00;(IPC1-7):E21C39/00	主分类号	E21B47/00
代理机构		代理人
主权项
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