Material stress monitor,申请号US19890346681-传众专利搜索

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发明名称	Material stress monitor
摘要
申请公布号	US4962668(A)	申请公布日期	1990.10.16
申请号	US19890346681	申请日期	1989.05.03
申请人	PRESTON, CHRISTOPER J.;COTTER, JOHN J.;CODRINGTON, JOHN;FRANTZOS, DIMITRI;HAMEL, PIERRE	发明人	PRESTON, CHRISTOPER J.;COTTER, JOHN J.;CODRINGTON, JOHN;FRANTZOS, DIMITRI;HAMEL, PIERRE
分类号	E21B49/00;E21C39/00;G01B7/16	主分类号	E21B49/00
代理机构		代理人
主权项
地址

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