Lens system for ultrasonic viewing of defects in objects,申请号US19480040253-传众专利搜索

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发明名称	Lens system for ultrasonic viewing of defects in objects
摘要
申请公布号	US2525873(A)	申请公布日期	1950.10.17
申请号	US19480040253	申请日期	1948.07.23
申请人	SPERRY PRODUCTS, INC.	发明人	JR. RALPH B. DE LANO,
分类号	G01N29/06;G10K11/30	主分类号	G01N29/06
代理机构		代理人
主权项
地址

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