Flaw detector for tubular conductors,申请号US19330697404-传众专利搜索

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发明名称	Flaw detector for tubular conductors
摘要
申请公布号	US2053693(A)	申请公布日期	1936.09.08
申请号	US19330697404	申请日期	1933.11.10
申请人	SPERRY PRODUCTS, INC.	发明人	BRADDON FRED D.
分类号	G01N27/90	主分类号	G01N27/90
代理机构		代理人
主权项
地址

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